| /* |
| * This is the High Performance Python Profiler portion of HotShot. |
| */ |
| |
| #include "Python.h" |
| #include "code.h" |
| #include "eval.h" |
| #include "frameobject.h" |
| #include "structmember.h" |
| |
| /* |
| * Which timer to use should be made more configurable, but that should not |
| * be difficult. This will do for now. |
| */ |
| #ifdef MS_WINDOWS |
| #include <windows.h> |
| |
| #ifdef HAVE_DIRECT_H |
| #include <direct.h> /* for getcwd() */ |
| #endif |
| |
| typedef __int64 hs_time; |
| #define GETTIMEOFDAY(P_HS_TIME) \ |
| { LARGE_INTEGER _temp; \ |
| QueryPerformanceCounter(&_temp); \ |
| *(P_HS_TIME) = _temp.QuadPart; } |
| |
| |
| #else |
| #ifndef HAVE_GETTIMEOFDAY |
| #error "This module requires gettimeofday() on non-Windows platforms!" |
| #endif |
| #if (defined(PYOS_OS2) && defined(PYCC_GCC)) || defined(__QNX__) |
| #include <sys/time.h> |
| #else |
| #include <sys/resource.h> |
| #include <sys/times.h> |
| #endif |
| typedef struct timeval hs_time; |
| #endif |
| |
| #if !defined(__cplusplus) && !defined(inline) |
| #ifdef __GNUC__ |
| #define inline __inline |
| #endif |
| #endif |
| |
| #ifndef inline |
| #define inline |
| #endif |
| |
| #define BUFFERSIZE 10240 |
| |
| #if defined(PYOS_OS2) && defined(PYCC_GCC) |
| #define PATH_MAX 260 |
| #endif |
| |
| #if defined(__sgi) && _COMPILER_VERSION>700 && !defined(PATH_MAX) |
| /* fix PATH_MAX not being defined with MIPSPro 7.x |
| if mode is ANSI C (default) */ |
| #define PATH_MAX 1024 |
| #endif |
| |
| #ifndef PATH_MAX |
| # ifdef MAX_PATH |
| # define PATH_MAX MAX_PATH |
| # elif defined (_POSIX_PATH_MAX) |
| # define PATH_MAX _POSIX_PATH_MAX |
| # else |
| # error "Need a defn. for PATH_MAX in _hotshot.c" |
| # endif |
| #endif |
| |
| typedef struct { |
| PyObject_HEAD |
| PyObject *filemap; |
| PyObject *logfilename; |
| Py_ssize_t index; |
| unsigned char buffer[BUFFERSIZE]; |
| FILE *logfp; |
| int lineevents; |
| int linetimings; |
| int frametimings; |
| /* size_t filled; */ |
| int active; |
| int next_fileno; |
| hs_time prev_timeofday; |
| } ProfilerObject; |
| |
| typedef struct { |
| PyObject_HEAD |
| PyObject *info; |
| FILE *logfp; |
| int linetimings; |
| int frametimings; |
| } LogReaderObject; |
| |
| static PyObject * ProfilerError = NULL; |
| |
| |
| #ifndef MS_WINDOWS |
| #ifdef GETTIMEOFDAY_NO_TZ |
| #define GETTIMEOFDAY(ptv) gettimeofday((ptv)) |
| #else |
| #define GETTIMEOFDAY(ptv) gettimeofday((ptv), (struct timezone *)NULL) |
| #endif |
| #endif |
| |
| |
| /* The log reader... */ |
| |
| PyDoc_STRVAR(logreader_close__doc__, |
| "close()\n" |
| "Close the log file, preventing additional records from being read."); |
| |
| static PyObject * |
| logreader_close(LogReaderObject *self, PyObject *args) |
| { |
| if (self->logfp != NULL) { |
| fclose(self->logfp); |
| self->logfp = NULL; |
| } |
| Py_INCREF(Py_None); |
| |
| return Py_None; |
| } |
| |
| PyDoc_STRVAR(logreader_fileno__doc__, |
| "fileno() -> file descriptor\n" |
| "Returns the file descriptor for the log file, if open.\n" |
| "Raises ValueError if the log file is closed."); |
| |
| static PyObject * |
| logreader_fileno(LogReaderObject *self) |
| { |
| if (self->logfp == NULL) { |
| PyErr_SetString(PyExc_ValueError, |
| "logreader's file object already closed"); |
| return NULL; |
| } |
| return PyInt_FromLong(fileno(self->logfp)); |
| } |
| |
| |
| /* Log File Format |
| * --------------- |
| * |
| * The log file consists of a sequence of variable-length records. |
| * Each record is identified with a record type identifier in two |
| * bits of the first byte. The two bits are the "least significant" |
| * bits of the byte. |
| * |
| * Low bits: Opcode: Meaning: |
| * 0x00 ENTER enter a frame |
| * 0x01 EXIT exit a frame |
| * 0x02 LINENO execution moved onto a different line |
| * 0x03 OTHER more bits are needed to deecode |
| * |
| * If the type is OTHER, the record is not packed so tightly, and the |
| * remaining bits are used to disambiguate the record type. These |
| * records are not used as frequently so compaction is not an issue. |
| * Each of the first three record types has a highly tailored |
| * structure that allows it to be packed tightly. |
| * |
| * The OTHER records have the following identifiers: |
| * |
| * First byte: Opcode: Meaning: |
| * 0x13 ADD_INFO define a key/value pair |
| * 0x23 DEFINE_FILE define an int->filename mapping |
| * 0x33 LINE_TIMES indicates if LINENO events have tdeltas |
| * 0x43 DEFINE_FUNC define a (fileno,lineno)->funcname mapping |
| * 0x53 FRAME_TIMES indicates if ENTER/EXIT events have tdeltas |
| * |
| * Packed Integers |
| * |
| * "Packed integers" are non-negative integer values encoded as a |
| * sequence of bytes. Each byte is encoded such that the most |
| * significant bit is set if the next byte is also part of the |
| * integer. Each byte provides bits to the least-significant end of |
| * the result; the accumulated value must be shifted up to place the |
| * new bits into the result. |
| * |
| * "Modified packed integers" are packed integers where only a portion |
| * of the first byte is used. In the rest of the specification, these |
| * are referred to as "MPI(n,name)", where "n" is the number of bits |
| * discarded from the least-signicant positions of the byte, and |
| * "name" is a name being given to those "discarded" bits, since they |
| * are a field themselves. |
| * |
| * ENTER records: |
| * |
| * MPI(2,type) fileno -- type is 0x00 |
| * PI lineno |
| * PI tdelta -- iff frame times are enabled |
| * |
| * EXIT records |
| * |
| * MPI(2,type) tdelta -- type is 0x01; tdelta will be 0 |
| * if frame times are disabled |
| * |
| * LINENO records |
| * |
| * MPI(2,type) lineno -- type is 0x02 |
| * PI tdelta -- iff LINENO includes it |
| * |
| * ADD_INFO records |
| * |
| * BYTE type -- always 0x13 |
| * PI len1 -- length of first string |
| * BYTE string1[len1] -- len1 bytes of string data |
| * PI len2 -- length of second string |
| * BYTE string2[len2] -- len2 bytes of string data |
| * |
| * DEFINE_FILE records |
| * |
| * BYTE type -- always 0x23 |
| * PI fileno |
| * PI len -- length of filename |
| * BYTE filename[len] -- len bytes of string data |
| * |
| * DEFINE_FUNC records |
| * |
| * BYTE type -- always 0x43 |
| * PI fileno |
| * PI lineno |
| * PI len -- length of funcname |
| * BYTE funcname[len] -- len bytes of string data |
| * |
| * LINE_TIMES records |
| * |
| * This record can be used only before the start of ENTER/EXIT/LINENO |
| * records. If have_tdelta is true, LINENO records will include the |
| * tdelta field, otherwise it will be omitted. If this record is not |
| * given, LINENO records will not contain the tdelta field. |
| * |
| * BYTE type -- always 0x33 |
| * BYTE have_tdelta -- 0 if LINENO does *not* have |
| * timing information |
| * FRAME_TIMES records |
| * |
| * This record can be used only before the start of ENTER/EXIT/LINENO |
| * records. If have_tdelta is true, ENTER and EXIT records will |
| * include the tdelta field, otherwise it will be omitted. If this |
| * record is not given, ENTER and EXIT records will contain the tdelta |
| * field. |
| * |
| * BYTE type -- always 0x53 |
| * BYTE have_tdelta -- 0 if ENTER/EXIT do *not* have |
| * timing information |
| */ |
| |
| #define WHAT_ENTER 0x00 |
| #define WHAT_EXIT 0x01 |
| #define WHAT_LINENO 0x02 |
| #define WHAT_OTHER 0x03 /* only used in decoding */ |
| #define WHAT_ADD_INFO 0x13 |
| #define WHAT_DEFINE_FILE 0x23 |
| #define WHAT_LINE_TIMES 0x33 |
| #define WHAT_DEFINE_FUNC 0x43 |
| #define WHAT_FRAME_TIMES 0x53 |
| |
| #define ERR_NONE 0 |
| #define ERR_EOF -1 |
| #define ERR_EXCEPTION -2 |
| #define ERR_BAD_RECTYPE -3 |
| |
| #define PISIZE (sizeof(int) + 1) |
| #define MPISIZE (PISIZE + 1) |
| |
| /* Maximum size of "normal" events -- nothing that contains string data */ |
| #define MAXEVENTSIZE (MPISIZE + PISIZE*2) |
| |
| |
| /* Unpack a packed integer; if "discard" is non-zero, unpack a modified |
| * packed integer with "discard" discarded bits. |
| */ |
| static int |
| unpack_packed_int(LogReaderObject *self, int *pvalue, int discard) |
| { |
| int c; |
| int accum = 0; |
| int bits = 0; |
| int cont; |
| |
| do { |
| /* read byte */ |
| if ((c = fgetc(self->logfp)) == EOF) |
| return ERR_EOF; |
| accum |= ((c & 0x7F) >> discard) << bits; |
| bits += (7 - discard); |
| cont = c & 0x80; |
| discard = 0; |
| } while (cont); |
| |
| *pvalue = accum; |
| |
| return 0; |
| } |
| |
| /* Unpack a string, which is encoded as a packed integer giving the |
| * length of the string, followed by the string data. |
| */ |
| static int |
| unpack_string(LogReaderObject *self, PyObject **pvalue) |
| { |
| int i; |
| int len; |
| int err; |
| int ch; |
| char *buf; |
| |
| if ((err = unpack_packed_int(self, &len, 0))) |
| return err; |
| |
| buf = (char *)malloc(len); |
| if (!buf) { |
| PyErr_NoMemory(); |
| return ERR_EXCEPTION; |
| } |
| |
| for (i=0; i < len; i++) { |
| ch = fgetc(self->logfp); |
| buf[i] = ch; |
| if (ch == EOF) { |
| free(buf); |
| return ERR_EOF; |
| } |
| } |
| *pvalue = PyString_FromStringAndSize(buf, len); |
| free(buf); |
| if (*pvalue == NULL) { |
| return ERR_EXCEPTION; |
| } |
| return 0; |
| } |
| |
| |
| static int |
| unpack_add_info(LogReaderObject *self) |
| { |
| PyObject *key; |
| PyObject *value = NULL; |
| int err; |
| |
| err = unpack_string(self, &key); |
| if (!err) { |
| err = unpack_string(self, &value); |
| if (err) |
| Py_DECREF(key); |
| else { |
| PyObject *list = PyDict_GetItem(self->info, key); |
| if (list == NULL) { |
| list = PyList_New(0); |
| if (list == NULL) { |
| err = ERR_EXCEPTION; |
| goto finally; |
| } |
| if (PyDict_SetItem(self->info, key, list)) { |
| Py_DECREF(list); |
| err = ERR_EXCEPTION; |
| goto finally; |
| } |
| Py_DECREF(list); |
| } |
| if (PyList_Append(list, value)) |
| err = ERR_EXCEPTION; |
| } |
| } |
| finally: |
| Py_XDECREF(key); |
| Py_XDECREF(value); |
| return err; |
| } |
| |
| |
| static void |
| eof_error(LogReaderObject *self) |
| { |
| fclose(self->logfp); |
| self->logfp = NULL; |
| PyErr_SetString(PyExc_EOFError, |
| "end of file with incomplete profile record"); |
| } |
| |
| static PyObject * |
| logreader_tp_iternext(LogReaderObject *self) |
| { |
| int c; |
| int what; |
| int err = ERR_NONE; |
| int lineno = -1; |
| int fileno = -1; |
| int tdelta = -1; |
| PyObject *s1 = NULL, *s2 = NULL; |
| PyObject *result = NULL; |
| #if 0 |
| unsigned char b0, b1; |
| #endif |
| |
| if (self->logfp == NULL) { |
| PyErr_SetString(ProfilerError, |
| "cannot iterate over closed LogReader object"); |
| return NULL; |
| } |
| |
| restart: |
| /* decode the record type */ |
| if ((c = fgetc(self->logfp)) == EOF) { |
| fclose(self->logfp); |
| self->logfp = NULL; |
| return NULL; |
| } |
| what = c & WHAT_OTHER; |
| if (what == WHAT_OTHER) |
| what = c; /* need all the bits for type */ |
| else |
| ungetc(c, self->logfp); /* type byte includes packed int */ |
| |
| switch (what) { |
| case WHAT_ENTER: |
| err = unpack_packed_int(self, &fileno, 2); |
| if (!err) { |
| err = unpack_packed_int(self, &lineno, 0); |
| if (self->frametimings && !err) |
| err = unpack_packed_int(self, &tdelta, 0); |
| } |
| break; |
| case WHAT_EXIT: |
| err = unpack_packed_int(self, &tdelta, 2); |
| break; |
| case WHAT_LINENO: |
| err = unpack_packed_int(self, &lineno, 2); |
| if (self->linetimings && !err) |
| err = unpack_packed_int(self, &tdelta, 0); |
| break; |
| case WHAT_ADD_INFO: |
| err = unpack_add_info(self); |
| break; |
| case WHAT_DEFINE_FILE: |
| err = unpack_packed_int(self, &fileno, 0); |
| if (!err) { |
| err = unpack_string(self, &s1); |
| if (!err) { |
| Py_INCREF(Py_None); |
| s2 = Py_None; |
| } |
| } |
| break; |
| case WHAT_DEFINE_FUNC: |
| err = unpack_packed_int(self, &fileno, 0); |
| if (!err) { |
| err = unpack_packed_int(self, &lineno, 0); |
| if (!err) |
| err = unpack_string(self, &s1); |
| } |
| break; |
| case WHAT_LINE_TIMES: |
| if ((c = fgetc(self->logfp)) == EOF) |
| err = ERR_EOF; |
| else { |
| self->linetimings = c ? 1 : 0; |
| goto restart; |
| } |
| break; |
| case WHAT_FRAME_TIMES: |
| if ((c = fgetc(self->logfp)) == EOF) |
| err = ERR_EOF; |
| else { |
| self->frametimings = c ? 1 : 0; |
| goto restart; |
| } |
| break; |
| default: |
| err = ERR_BAD_RECTYPE; |
| } |
| if (err == ERR_BAD_RECTYPE) { |
| PyErr_SetString(PyExc_ValueError, |
| "unknown record type in log file"); |
| } |
| else if (err == ERR_EOF) { |
| eof_error(self); |
| } |
| else if (!err) { |
| result = PyTuple_New(4); |
| if (result == NULL) |
| return NULL; |
| PyTuple_SET_ITEM(result, 0, PyInt_FromLong(what)); |
| PyTuple_SET_ITEM(result, 2, PyInt_FromLong(fileno)); |
| if (s1 == NULL) |
| PyTuple_SET_ITEM(result, 1, PyInt_FromLong(tdelta)); |
| else |
| PyTuple_SET_ITEM(result, 1, s1); |
| if (s2 == NULL) |
| PyTuple_SET_ITEM(result, 3, PyInt_FromLong(lineno)); |
| else |
| PyTuple_SET_ITEM(result, 3, s2); |
| } |
| /* The only other case is err == ERR_EXCEPTION, in which case the |
| * exception is already set. |
| */ |
| #if 0 |
| b0 = self->buffer[self->index]; |
| b1 = self->buffer[self->index + 1]; |
| if (b0 & 1) { |
| /* This is a line-number event. */ |
| what = PyTrace_LINE; |
| lineno = ((b0 & ~1) << 7) + b1; |
| self->index += 2; |
| } |
| else { |
| what = (b0 & 0x0E) >> 1; |
| tdelta = ((b0 & 0xF0) << 4) + b1; |
| if (what == PyTrace_CALL) { |
| /* we know there's a 2-byte file ID & 2-byte line number */ |
| fileno = ((self->buffer[self->index + 2] << 8) |
| + self->buffer[self->index + 3]); |
| lineno = ((self->buffer[self->index + 4] << 8) |
| + self->buffer[self->index + 5]); |
| self->index += 6; |
| } |
| else |
| self->index += 2; |
| } |
| #endif |
| return result; |
| } |
| |
| static void |
| logreader_dealloc(LogReaderObject *self) |
| { |
| if (self->logfp != NULL) { |
| fclose(self->logfp); |
| self->logfp = NULL; |
| } |
| Py_XDECREF(self->info); |
| PyObject_Del(self); |
| } |
| |
| static PyObject * |
| logreader_sq_item(LogReaderObject *self, Py_ssize_t index) |
| { |
| PyObject *result = logreader_tp_iternext(self); |
| if (result == NULL && !PyErr_Occurred()) { |
| PyErr_SetString(PyExc_IndexError, "no more events in log"); |
| return NULL; |
| } |
| return result; |
| } |
| |
| static void |
| do_stop(ProfilerObject *self); |
| |
| static int |
| flush_data(ProfilerObject *self) |
| { |
| /* Need to dump data to the log file... */ |
| size_t written = fwrite(self->buffer, 1, self->index, self->logfp); |
| if (written == (size_t)self->index) |
| self->index = 0; |
| else { |
| memmove(self->buffer, &self->buffer[written], |
| self->index - written); |
| self->index -= written; |
| if (written == 0) { |
| char *s = PyString_AsString(self->logfilename); |
| PyErr_SetFromErrnoWithFilename(PyExc_IOError, s); |
| do_stop(self); |
| return -1; |
| } |
| } |
| if (written > 0) { |
| if (fflush(self->logfp)) { |
| char *s = PyString_AsString(self->logfilename); |
| PyErr_SetFromErrnoWithFilename(PyExc_IOError, s); |
| do_stop(self); |
| return -1; |
| } |
| } |
| return 0; |
| } |
| |
| static inline int |
| pack_packed_int(ProfilerObject *self, int value) |
| { |
| unsigned char partial; |
| |
| do { |
| partial = value & 0x7F; |
| value >>= 7; |
| if (value) |
| partial |= 0x80; |
| self->buffer[self->index] = partial; |
| self->index++; |
| } while (value); |
| return 0; |
| } |
| |
| /* Encode a modified packed integer, with a subfield of modsize bits |
| * containing the value "subfield". The value of subfield is not |
| * checked to ensure it actually fits in modsize bits. |
| */ |
| static inline int |
| pack_modified_packed_int(ProfilerObject *self, int value, |
| int modsize, int subfield) |
| { |
| const int maxvalues[] = {-1, 1, 3, 7, 15, 31, 63, 127}; |
| |
| int bits = 7 - modsize; |
| int partial = value & maxvalues[bits]; |
| unsigned char b = subfield | (partial << modsize); |
| |
| if (partial != value) { |
| b |= 0x80; |
| self->buffer[self->index] = b; |
| self->index++; |
| return pack_packed_int(self, value >> bits); |
| } |
| self->buffer[self->index] = b; |
| self->index++; |
| return 0; |
| } |
| |
| static int |
| pack_string(ProfilerObject *self, const char *s, Py_ssize_t len) |
| { |
| if (len + PISIZE + self->index >= BUFFERSIZE) { |
| if (flush_data(self) < 0) |
| return -1; |
| } |
| assert(len < INT_MAX); |
| if (pack_packed_int(self, (int)len) < 0) |
| return -1; |
| memcpy(self->buffer + self->index, s, len); |
| self->index += len; |
| return 0; |
| } |
| |
| static int |
| pack_add_info(ProfilerObject *self, const char *s1, const char *s2) |
| { |
| Py_ssize_t len1 = strlen(s1); |
| Py_ssize_t len2 = strlen(s2); |
| |
| if (len1 + len2 + PISIZE*2 + 1 + self->index >= BUFFERSIZE) { |
| if (flush_data(self) < 0) |
| return -1; |
| } |
| self->buffer[self->index] = WHAT_ADD_INFO; |
| self->index++; |
| if (pack_string(self, s1, len1) < 0) |
| return -1; |
| return pack_string(self, s2, len2); |
| } |
| |
| static int |
| pack_define_file(ProfilerObject *self, int fileno, const char *filename) |
| { |
| Py_ssize_t len = strlen(filename); |
| |
| if (len + PISIZE*2 + 1 + self->index >= BUFFERSIZE) { |
| if (flush_data(self) < 0) |
| return -1; |
| } |
| self->buffer[self->index] = WHAT_DEFINE_FILE; |
| self->index++; |
| if (pack_packed_int(self, fileno) < 0) |
| return -1; |
| return pack_string(self, filename, len); |
| } |
| |
| static int |
| pack_define_func(ProfilerObject *self, int fileno, int lineno, |
| const char *funcname) |
| { |
| Py_ssize_t len = strlen(funcname); |
| |
| if (len + PISIZE*3 + 1 + self->index >= BUFFERSIZE) { |
| if (flush_data(self) < 0) |
| return -1; |
| } |
| self->buffer[self->index] = WHAT_DEFINE_FUNC; |
| self->index++; |
| if (pack_packed_int(self, fileno) < 0) |
| return -1; |
| if (pack_packed_int(self, lineno) < 0) |
| return -1; |
| return pack_string(self, funcname, len); |
| } |
| |
| static int |
| pack_line_times(ProfilerObject *self) |
| { |
| if (2 + self->index >= BUFFERSIZE) { |
| if (flush_data(self) < 0) |
| return -1; |
| } |
| self->buffer[self->index] = WHAT_LINE_TIMES; |
| self->buffer[self->index + 1] = self->linetimings ? 1 : 0; |
| self->index += 2; |
| return 0; |
| } |
| |
| static int |
| pack_frame_times(ProfilerObject *self) |
| { |
| if (2 + self->index >= BUFFERSIZE) { |
| if (flush_data(self) < 0) |
| return -1; |
| } |
| self->buffer[self->index] = WHAT_FRAME_TIMES; |
| self->buffer[self->index + 1] = self->frametimings ? 1 : 0; |
| self->index += 2; |
| return 0; |
| } |
| |
| static inline int |
| pack_enter(ProfilerObject *self, int fileno, int tdelta, int lineno) |
| { |
| if (MPISIZE + PISIZE*2 + self->index >= BUFFERSIZE) { |
| if (flush_data(self) < 0) |
| return -1; |
| } |
| pack_modified_packed_int(self, fileno, 2, WHAT_ENTER); |
| pack_packed_int(self, lineno); |
| if (self->frametimings) |
| return pack_packed_int(self, tdelta); |
| else |
| return 0; |
| } |
| |
| static inline int |
| pack_exit(ProfilerObject *self, int tdelta) |
| { |
| if (MPISIZE + self->index >= BUFFERSIZE) { |
| if (flush_data(self) < 0) |
| return -1; |
| } |
| if (self->frametimings) |
| return pack_modified_packed_int(self, tdelta, 2, WHAT_EXIT); |
| self->buffer[self->index] = WHAT_EXIT; |
| self->index++; |
| return 0; |
| } |
| |
| static inline int |
| pack_lineno(ProfilerObject *self, int lineno) |
| { |
| if (MPISIZE + self->index >= BUFFERSIZE) { |
| if (flush_data(self) < 0) |
| return -1; |
| } |
| return pack_modified_packed_int(self, lineno, 2, WHAT_LINENO); |
| } |
| |
| static inline int |
| pack_lineno_tdelta(ProfilerObject *self, int lineno, int tdelta) |
| { |
| if (MPISIZE + PISIZE + self->index >= BUFFERSIZE) { |
| if (flush_data(self) < 0) |
| return 0; |
| } |
| if (pack_modified_packed_int(self, lineno, 2, WHAT_LINENO) < 0) |
| return -1; |
| return pack_packed_int(self, tdelta); |
| } |
| |
| static inline int |
| get_fileno(ProfilerObject *self, PyCodeObject *fcode) |
| { |
| /* This is only used for ENTER events. */ |
| |
| PyObject *obj; |
| PyObject *dict; |
| int fileno; |
| |
| obj = PyDict_GetItem(self->filemap, fcode->co_filename); |
| if (obj == NULL) { |
| /* first sighting of this file */ |
| dict = PyDict_New(); |
| if (dict == NULL) { |
| return -1; |
| } |
| fileno = self->next_fileno; |
| obj = Py_BuildValue("iN", fileno, dict); |
| if (obj == NULL) { |
| return -1; |
| } |
| if (PyDict_SetItem(self->filemap, fcode->co_filename, obj)) { |
| Py_DECREF(obj); |
| return -1; |
| } |
| self->next_fileno++; |
| Py_DECREF(obj); |
| if (pack_define_file(self, fileno, |
| PyString_AS_STRING(fcode->co_filename)) < 0) |
| return -1; |
| } |
| else { |
| /* already know this ID */ |
| fileno = PyInt_AS_LONG(PyTuple_GET_ITEM(obj, 0)); |
| dict = PyTuple_GET_ITEM(obj, 1); |
| } |
| /* make sure we save a function name for this (fileno, lineno) */ |
| obj = PyInt_FromLong(fcode->co_firstlineno); |
| if (obj == NULL) { |
| /* We just won't have it saved; too bad. */ |
| PyErr_Clear(); |
| } |
| else { |
| PyObject *name = PyDict_GetItem(dict, obj); |
| if (name == NULL) { |
| if (pack_define_func(self, fileno, fcode->co_firstlineno, |
| PyString_AS_STRING(fcode->co_name)) < 0) { |
| Py_DECREF(obj); |
| return -1; |
| } |
| if (PyDict_SetItem(dict, obj, fcode->co_name)) { |
| Py_DECREF(obj); |
| return -1; |
| } |
| } |
| Py_DECREF(obj); |
| } |
| return fileno; |
| } |
| |
| static inline int |
| get_tdelta(ProfilerObject *self) |
| { |
| int tdelta; |
| #ifdef MS_WINDOWS |
| hs_time tv; |
| hs_time diff; |
| |
| GETTIMEOFDAY(&tv); |
| diff = tv - self->prev_timeofday; |
| tdelta = (int)diff; |
| #else |
| struct timeval tv; |
| |
| GETTIMEOFDAY(&tv); |
| |
| tdelta = tv.tv_usec - self->prev_timeofday.tv_usec; |
| if (tv.tv_sec != self->prev_timeofday.tv_sec) |
| tdelta += (tv.tv_sec - self->prev_timeofday.tv_sec) * 1000000; |
| #endif |
| /* time can go backwards on some multiprocessor systems or by NTP */ |
| if (tdelta < 0) |
| return 0; |
| |
| self->prev_timeofday = tv; |
| return tdelta; |
| } |
| |
| |
| /* The workhorse: the profiler callback function. */ |
| |
| static int |
| tracer_callback(ProfilerObject *self, PyFrameObject *frame, int what, |
| PyObject *arg) |
| { |
| int fileno; |
| |
| switch (what) { |
| case PyTrace_CALL: |
| fileno = get_fileno(self, frame->f_code); |
| if (fileno < 0) |
| return -1; |
| return pack_enter(self, fileno, |
| self->frametimings ? get_tdelta(self) : -1, |
| frame->f_code->co_firstlineno); |
| |
| case PyTrace_RETURN: |
| return pack_exit(self, get_tdelta(self)); |
| |
| case PyTrace_LINE: /* we only get these events if we asked for them */ |
| if (self->linetimings) |
| return pack_lineno_tdelta(self, frame->f_lineno, |
| get_tdelta(self)); |
| else |
| return pack_lineno(self, frame->f_lineno); |
| |
| default: |
| /* ignore PyTrace_EXCEPTION */ |
| break; |
| } |
| return 0; |
| } |
| |
| |
| /* A couple of useful helper functions. */ |
| |
| #ifdef MS_WINDOWS |
| static LARGE_INTEGER frequency = {0, 0}; |
| #endif |
| |
| static unsigned long timeofday_diff = 0; |
| static unsigned long rusage_diff = 0; |
| |
| static void |
| calibrate(void) |
| { |
| hs_time tv1, tv2; |
| |
| #ifdef MS_WINDOWS |
| hs_time diff; |
| QueryPerformanceFrequency(&frequency); |
| #endif |
| |
| GETTIMEOFDAY(&tv1); |
| while (1) { |
| GETTIMEOFDAY(&tv2); |
| #ifdef MS_WINDOWS |
| diff = tv2 - tv1; |
| if (diff != 0) { |
| timeofday_diff = (unsigned long)diff; |
| break; |
| } |
| #else |
| if (tv1.tv_sec != tv2.tv_sec || tv1.tv_usec != tv2.tv_usec) { |
| if (tv1.tv_sec == tv2.tv_sec) |
| timeofday_diff = tv2.tv_usec - tv1.tv_usec; |
| else |
| timeofday_diff = (1000000 - tv1.tv_usec) + tv2.tv_usec; |
| break; |
| } |
| #endif |
| } |
| #if defined(MS_WINDOWS) || defined(PYOS_OS2) || \ |
| defined(__VMS) || defined (__QNX__) |
| rusage_diff = -1; |
| #else |
| { |
| struct rusage ru1, ru2; |
| |
| getrusage(RUSAGE_SELF, &ru1); |
| while (1) { |
| getrusage(RUSAGE_SELF, &ru2); |
| if (ru1.ru_utime.tv_sec != ru2.ru_utime.tv_sec) { |
| rusage_diff = ((1000000 - ru1.ru_utime.tv_usec) |
| + ru2.ru_utime.tv_usec); |
| break; |
| } |
| else if (ru1.ru_utime.tv_usec != ru2.ru_utime.tv_usec) { |
| rusage_diff = ru2.ru_utime.tv_usec - ru1.ru_utime.tv_usec; |
| break; |
| } |
| else if (ru1.ru_stime.tv_sec != ru2.ru_stime.tv_sec) { |
| rusage_diff = ((1000000 - ru1.ru_stime.tv_usec) |
| + ru2.ru_stime.tv_usec); |
| break; |
| } |
| else if (ru1.ru_stime.tv_usec != ru2.ru_stime.tv_usec) { |
| rusage_diff = ru2.ru_stime.tv_usec - ru1.ru_stime.tv_usec; |
| break; |
| } |
| } |
| } |
| #endif |
| } |
| |
| static void |
| do_start(ProfilerObject *self) |
| { |
| self->active = 1; |
| GETTIMEOFDAY(&self->prev_timeofday); |
| if (self->lineevents) |
| PyEval_SetTrace((Py_tracefunc) tracer_callback, (PyObject *)self); |
| else |
| PyEval_SetProfile((Py_tracefunc) tracer_callback, (PyObject *)self); |
| } |
| |
| static void |
| do_stop(ProfilerObject *self) |
| { |
| if (self->active) { |
| self->active = 0; |
| if (self->lineevents) |
| PyEval_SetTrace(NULL, NULL); |
| else |
| PyEval_SetProfile(NULL, NULL); |
| } |
| if (self->index > 0) { |
| /* Best effort to dump out any remaining data. */ |
| flush_data(self); |
| } |
| } |
| |
| static int |
| is_available(ProfilerObject *self) |
| { |
| if (self->active) { |
| PyErr_SetString(ProfilerError, "profiler already active"); |
| return 0; |
| } |
| if (self->logfp == NULL) { |
| PyErr_SetString(ProfilerError, "profiler already closed"); |
| return 0; |
| } |
| return 1; |
| } |
| |
| |
| /* Profiler object interface methods. */ |
| |
| PyDoc_STRVAR(addinfo__doc__, |
| "addinfo(key, value)\n" |
| "Insert an ADD_INFO record into the log."); |
| |
| static PyObject * |
| profiler_addinfo(ProfilerObject *self, PyObject *args) |
| { |
| PyObject *result = NULL; |
| char *key, *value; |
| |
| if (PyArg_ParseTuple(args, "ss:addinfo", &key, &value)) { |
| if (self->logfp == NULL) |
| PyErr_SetString(ProfilerError, "profiler already closed"); |
| else { |
| if (pack_add_info(self, key, value) == 0) { |
| result = Py_None; |
| Py_INCREF(result); |
| } |
| } |
| } |
| return result; |
| } |
| |
| PyDoc_STRVAR(close__doc__, |
| "close()\n" |
| "Shut down this profiler and close the log files, even if its active."); |
| |
| static PyObject * |
| profiler_close(ProfilerObject *self) |
| { |
| do_stop(self); |
| if (self->logfp != NULL) { |
| fclose(self->logfp); |
| self->logfp = NULL; |
| } |
| Py_INCREF(Py_None); |
| return Py_None; |
| } |
| |
| #define fileno__doc__ logreader_fileno__doc__ |
| |
| static PyObject * |
| profiler_fileno(ProfilerObject *self) |
| { |
| if (self->logfp == NULL) { |
| PyErr_SetString(PyExc_ValueError, |
| "profiler's file object already closed"); |
| return NULL; |
| } |
| return PyInt_FromLong(fileno(self->logfp)); |
| } |
| |
| PyDoc_STRVAR(runcall__doc__, |
| "runcall(callable[, args[, kw]]) -> callable()\n" |
| "Profile a specific function call, returning the result of that call."); |
| |
| static PyObject * |
| profiler_runcall(ProfilerObject *self, PyObject *args) |
| { |
| PyObject *result = NULL; |
| PyObject *callargs = NULL; |
| PyObject *callkw = NULL; |
| PyObject *callable; |
| |
| if (PyArg_UnpackTuple(args, "runcall", 1, 3, |
| &callable, &callargs, &callkw)) { |
| if (is_available(self)) { |
| do_start(self); |
| result = PyEval_CallObjectWithKeywords(callable, callargs, callkw); |
| do_stop(self); |
| } |
| } |
| return result; |
| } |
| |
| PyDoc_STRVAR(runcode__doc__, |
| "runcode(code, globals[, locals])\n" |
| "Execute a code object while collecting profile data. If locals is\n" |
| "omitted, globals is used for the locals as well."); |
| |
| static PyObject * |
| profiler_runcode(ProfilerObject *self, PyObject *args) |
| { |
| PyObject *result = NULL; |
| PyCodeObject *code; |
| PyObject *globals; |
| PyObject *locals = NULL; |
| |
| if (PyArg_ParseTuple(args, "O!O!|O:runcode", |
| &PyCode_Type, &code, |
| &PyDict_Type, &globals, |
| &locals)) { |
| if (is_available(self)) { |
| if (locals == NULL || locals == Py_None) |
| locals = globals; |
| else if (!PyDict_Check(locals)) { |
| PyErr_SetString(PyExc_TypeError, |
| "locals must be a dictionary or None"); |
| return NULL; |
| } |
| do_start(self); |
| result = PyEval_EvalCode(code, globals, locals); |
| do_stop(self); |
| #if 0 |
| if (!PyErr_Occurred()) { |
| result = Py_None; |
| Py_INCREF(result); |
| } |
| #endif |
| } |
| } |
| return result; |
| } |
| |
| PyDoc_STRVAR(start__doc__, |
| "start()\n" |
| "Install this profiler for the current thread."); |
| |
| static PyObject * |
| profiler_start(ProfilerObject *self, PyObject *args) |
| { |
| PyObject *result = NULL; |
| |
| if (is_available(self)) { |
| do_start(self); |
| result = Py_None; |
| Py_INCREF(result); |
| } |
| return result; |
| } |
| |
| PyDoc_STRVAR(stop__doc__, |
| "stop()\n" |
| "Remove this profiler from the current thread."); |
| |
| static PyObject * |
| profiler_stop(ProfilerObject *self, PyObject *args) |
| { |
| PyObject *result = NULL; |
| |
| if (!self->active) |
| PyErr_SetString(ProfilerError, "profiler not active"); |
| else { |
| do_stop(self); |
| result = Py_None; |
| Py_INCREF(result); |
| } |
| return result; |
| } |
| |
| |
| /* Python API support. */ |
| |
| static void |
| profiler_dealloc(ProfilerObject *self) |
| { |
| do_stop(self); |
| if (self->logfp != NULL) |
| fclose(self->logfp); |
| Py_XDECREF(self->filemap); |
| Py_XDECREF(self->logfilename); |
| PyObject_Del((PyObject *)self); |
| } |
| |
| static PyMethodDef profiler_methods[] = { |
| {"addinfo", (PyCFunction)profiler_addinfo, METH_VARARGS, addinfo__doc__}, |
| {"close", (PyCFunction)profiler_close, METH_NOARGS, close__doc__}, |
| {"fileno", (PyCFunction)profiler_fileno, METH_NOARGS, fileno__doc__}, |
| {"runcall", (PyCFunction)profiler_runcall, METH_VARARGS, runcall__doc__}, |
| {"runcode", (PyCFunction)profiler_runcode, METH_VARARGS, runcode__doc__}, |
| {"start", (PyCFunction)profiler_start, METH_NOARGS, start__doc__}, |
| {"stop", (PyCFunction)profiler_stop, METH_NOARGS, stop__doc__}, |
| {NULL, NULL} |
| }; |
| |
| static PyMemberDef profiler_members[] = { |
| {"frametimings", T_LONG, offsetof(ProfilerObject, linetimings), READONLY}, |
| {"lineevents", T_LONG, offsetof(ProfilerObject, lineevents), READONLY}, |
| {"linetimings", T_LONG, offsetof(ProfilerObject, linetimings), READONLY}, |
| {NULL} |
| }; |
| |
| static PyObject * |
| profiler_get_closed(ProfilerObject *self, void *closure) |
| { |
| PyObject *result = (self->logfp == NULL) ? Py_True : Py_False; |
| Py_INCREF(result); |
| return result; |
| } |
| |
| static PyGetSetDef profiler_getsets[] = { |
| {"closed", (getter)profiler_get_closed, NULL, |
| PyDoc_STR("True if the profiler's output file has already been closed.")}, |
| {NULL} |
| }; |
| |
| |
| PyDoc_STRVAR(profiler_object__doc__, |
| "High-performance profiler object.\n" |
| "\n" |
| "Methods:\n" |
| "\n" |
| "close(): Stop the profiler and close the log files.\n" |
| "fileno(): Returns the file descriptor of the log file.\n" |
| "runcall(): Run a single function call with profiling enabled.\n" |
| "runcode(): Execute a code object with profiling enabled.\n" |
| "start(): Install the profiler and return.\n" |
| "stop(): Remove the profiler.\n" |
| "\n" |
| "Attributes (read-only):\n" |
| "\n" |
| "closed: True if the profiler has already been closed.\n" |
| "frametimings: True if ENTER/EXIT events collect timing information.\n" |
| "lineevents: True if line events are reported to the profiler.\n" |
| "linetimings: True if line events collect timing information."); |
| |
| static PyTypeObject ProfilerType = { |
| PyVarObject_HEAD_INIT(NULL, 0) |
| "_hotshot.ProfilerType", /* tp_name */ |
| (int) sizeof(ProfilerObject), /* tp_basicsize */ |
| 0, /* tp_itemsize */ |
| (destructor)profiler_dealloc, /* tp_dealloc */ |
| 0, /* tp_print */ |
| 0, /* tp_getattr */ |
| 0, /* tp_setattr */ |
| 0, /* tp_compare */ |
| 0, /* tp_repr */ |
| 0, /* tp_as_number */ |
| 0, /* tp_as_sequence */ |
| 0, /* tp_as_mapping */ |
| 0, /* tp_hash */ |
| 0, /* tp_call */ |
| 0, /* tp_str */ |
| PyObject_GenericGetAttr, /* tp_getattro */ |
| 0, /* tp_setattro */ |
| 0, /* tp_as_buffer */ |
| Py_TPFLAGS_DEFAULT, /* tp_flags */ |
| profiler_object__doc__, /* tp_doc */ |
| 0, /* tp_traverse */ |
| 0, /* tp_clear */ |
| 0, /* tp_richcompare */ |
| 0, /* tp_weaklistoffset */ |
| 0, /* tp_iter */ |
| 0, /* tp_iternext */ |
| profiler_methods, /* tp_methods */ |
| profiler_members, /* tp_members */ |
| profiler_getsets, /* tp_getset */ |
| 0, /* tp_base */ |
| 0, /* tp_dict */ |
| 0, /* tp_descr_get */ |
| 0, /* tp_descr_set */ |
| }; |
| |
| |
| static PyMethodDef logreader_methods[] = { |
| {"close", (PyCFunction)logreader_close, METH_NOARGS, |
| logreader_close__doc__}, |
| {"fileno", (PyCFunction)logreader_fileno, METH_NOARGS, |
| logreader_fileno__doc__}, |
| {NULL, NULL} |
| }; |
| |
| static PyMemberDef logreader_members[] = { |
| {"info", T_OBJECT, offsetof(LogReaderObject, info), RO, |
| PyDoc_STR("Dictionary mapping informational keys to lists of values.")}, |
| {NULL} |
| }; |
| |
| |
| PyDoc_STRVAR(logreader__doc__, |
| "logreader(filename) --> log-iterator\n\ |
| Create a log-reader for the timing information file."); |
| |
| static PySequenceMethods logreader_as_sequence = { |
| 0, /* sq_length */ |
| 0, /* sq_concat */ |
| 0, /* sq_repeat */ |
| (ssizeargfunc)logreader_sq_item, /* sq_item */ |
| 0, /* sq_slice */ |
| 0, /* sq_ass_item */ |
| 0, /* sq_ass_slice */ |
| 0, /* sq_contains */ |
| 0, /* sq_inplace_concat */ |
| 0, /* sq_inplace_repeat */ |
| }; |
| |
| static PyObject * |
| logreader_get_closed(LogReaderObject *self, void *closure) |
| { |
| PyObject *result = (self->logfp == NULL) ? Py_True : Py_False; |
| Py_INCREF(result); |
| return result; |
| } |
| |
| static PyGetSetDef logreader_getsets[] = { |
| {"closed", (getter)logreader_get_closed, NULL, |
| PyDoc_STR("True if the logreader's input file has already been closed.")}, |
| {NULL} |
| }; |
| |
| static PyTypeObject LogReaderType = { |
| PyVarObject_HEAD_INIT(NULL, 0) |
| "_hotshot.LogReaderType", /* tp_name */ |
| (int) sizeof(LogReaderObject), /* tp_basicsize */ |
| 0, /* tp_itemsize */ |
| (destructor)logreader_dealloc, /* tp_dealloc */ |
| 0, /* tp_print */ |
| 0, /* tp_getattr */ |
| 0, /* tp_setattr */ |
| 0, /* tp_compare */ |
| 0, /* tp_repr */ |
| 0, /* tp_as_number */ |
| &logreader_as_sequence, /* tp_as_sequence */ |
| 0, /* tp_as_mapping */ |
| 0, /* tp_hash */ |
| 0, /* tp_call */ |
| 0, /* tp_str */ |
| PyObject_GenericGetAttr, /* tp_getattro */ |
| 0, /* tp_setattro */ |
| 0, /* tp_as_buffer */ |
| Py_TPFLAGS_DEFAULT, /* tp_flags */ |
| logreader__doc__, /* tp_doc */ |
| 0, /* tp_traverse */ |
| 0, /* tp_clear */ |
| 0, /* tp_richcompare */ |
| 0, /* tp_weaklistoffset */ |
| PyObject_SelfIter, /* tp_iter */ |
| (iternextfunc)logreader_tp_iternext,/* tp_iternext */ |
| logreader_methods, /* tp_methods */ |
| logreader_members, /* tp_members */ |
| logreader_getsets, /* tp_getset */ |
| 0, /* tp_base */ |
| 0, /* tp_dict */ |
| 0, /* tp_descr_get */ |
| 0, /* tp_descr_set */ |
| }; |
| |
| static PyObject * |
| hotshot_logreader(PyObject *unused, PyObject *args) |
| { |
| LogReaderObject *self = NULL; |
| char *filename; |
| int c; |
| int err = 0; |
| |
| if (PyArg_ParseTuple(args, "s:logreader", &filename)) { |
| self = PyObject_New(LogReaderObject, &LogReaderType); |
| if (self != NULL) { |
| self->frametimings = 1; |
| self->linetimings = 0; |
| self->info = NULL; |
| self->logfp = fopen(filename, "rb"); |
| if (self->logfp == NULL) { |
| PyErr_SetFromErrnoWithFilename(PyExc_IOError, filename); |
| goto error; |
| } |
| self->info = PyDict_New(); |
| if (self->info == NULL) |
| goto error; |
| /* read initial info */ |
| for (;;) { |
| if ((c = fgetc(self->logfp)) == EOF) { |
| eof_error(self); |
| goto error; |
| } |
| if (c != WHAT_ADD_INFO) { |
| ungetc(c, self->logfp); |
| break; |
| } |
| err = unpack_add_info(self); |
| if (err) { |
| if (err == ERR_EOF) |
| eof_error(self); |
| else |
| PyErr_SetString(PyExc_RuntimeError, |
| "unexpected error"); |
| goto error; |
| } |
| } |
| } |
| } |
| return (PyObject *) self; |
| error: |
| Py_DECREF(self); |
| return NULL; |
| } |
| |
| |
| /* Return a Python string that represents the version number without the |
| * extra cruft added by revision control, even if the right options were |
| * given to the "cvs export" command to make it not include the extra |
| * cruft. |
| */ |
| static char * |
| get_version_string(void) |
| { |
| static char *rcsid = "$Revision: 67801 $"; |
| char *rev = rcsid; |
| char *buffer; |
| int i = 0; |
| |
| while (*rev && !isdigit(Py_CHARMASK(*rev))) |
| ++rev; |
| while (rev[i] != ' ' && rev[i] != '\0') |
| ++i; |
| buffer = (char *)malloc(i + 1); |
| if (buffer != NULL) { |
| memmove(buffer, rev, i); |
| buffer[i] = '\0'; |
| } |
| return buffer; |
| } |
| |
| /* Write out a RFC 822-style header with various useful bits of |
| * information to make the output easier to manage. |
| */ |
| static int |
| write_header(ProfilerObject *self) |
| { |
| char *buffer; |
| char cwdbuffer[PATH_MAX]; |
| PyObject *temp; |
| Py_ssize_t i, len; |
| |
| buffer = get_version_string(); |
| if (buffer == NULL) { |
| PyErr_NoMemory(); |
| return -1; |
| } |
| pack_add_info(self, "hotshot-version", buffer); |
| pack_add_info(self, "requested-frame-timings", |
| (self->frametimings ? "yes" : "no")); |
| pack_add_info(self, "requested-line-events", |
| (self->lineevents ? "yes" : "no")); |
| pack_add_info(self, "requested-line-timings", |
| (self->linetimings ? "yes" : "no")); |
| pack_add_info(self, "platform", Py_GetPlatform()); |
| pack_add_info(self, "executable", Py_GetProgramFullPath()); |
| free(buffer); |
| buffer = (char *) Py_GetVersion(); |
| if (buffer == NULL) |
| PyErr_Clear(); |
| else |
| pack_add_info(self, "executable-version", buffer); |
| |
| #ifdef MS_WINDOWS |
| PyOS_snprintf(cwdbuffer, sizeof(cwdbuffer), "%I64d", frequency.QuadPart); |
| pack_add_info(self, "reported-performance-frequency", cwdbuffer); |
| #else |
| PyOS_snprintf(cwdbuffer, sizeof(cwdbuffer), "%lu", rusage_diff); |
| pack_add_info(self, "observed-interval-getrusage", cwdbuffer); |
| PyOS_snprintf(cwdbuffer, sizeof(cwdbuffer), "%lu", timeofday_diff); |
| pack_add_info(self, "observed-interval-gettimeofday", cwdbuffer); |
| #endif |
| |
| pack_add_info(self, "current-directory", |
| getcwd(cwdbuffer, sizeof cwdbuffer)); |
| |
| temp = PySys_GetObject("path"); |
| if (temp == NULL || !PyList_Check(temp)) { |
| PyErr_SetString(PyExc_RuntimeError, "sys.path must be a list"); |
| return -1; |
| } |
| len = PyList_GET_SIZE(temp); |
| for (i = 0; i < len; ++i) { |
| PyObject *item = PyList_GET_ITEM(temp, i); |
| buffer = PyString_AsString(item); |
| if (buffer == NULL) { |
| pack_add_info(self, "sys-path-entry", "<non-string-path-entry>"); |
| PyErr_Clear(); |
| } |
| else { |
| pack_add_info(self, "sys-path-entry", buffer); |
| } |
| } |
| pack_frame_times(self); |
| pack_line_times(self); |
| |
| return 0; |
| } |
| |
| PyDoc_STRVAR(profiler__doc__, |
| "profiler(logfilename[, lineevents[, linetimes]]) -> profiler\n\ |
| Create a new profiler object."); |
| |
| static PyObject * |
| hotshot_profiler(PyObject *unused, PyObject *args) |
| { |
| char *logfilename; |
| ProfilerObject *self = NULL; |
| int lineevents = 0; |
| int linetimings = 1; |
| |
| if (PyArg_ParseTuple(args, "s|ii:profiler", &logfilename, |
| &lineevents, &linetimings)) { |
| self = PyObject_New(ProfilerObject, &ProfilerType); |
| if (self == NULL) |
| return NULL; |
| self->frametimings = 1; |
| self->lineevents = lineevents ? 1 : 0; |
| self->linetimings = (lineevents && linetimings) ? 1 : 0; |
| self->index = 0; |
| self->active = 0; |
| self->next_fileno = 0; |
| self->logfp = NULL; |
| self->logfilename = PyTuple_GET_ITEM(args, 0); |
| Py_INCREF(self->logfilename); |
| self->filemap = PyDict_New(); |
| if (self->filemap == NULL) { |
| Py_DECREF(self); |
| return NULL; |
| } |
| self->logfp = fopen(logfilename, "wb"); |
| if (self->logfp == NULL) { |
| Py_DECREF(self); |
| PyErr_SetFromErrnoWithFilename(PyExc_IOError, logfilename); |
| return NULL; |
| } |
| if (timeofday_diff == 0) { |
| /* Run this several times since sometimes the first |
| * doesn't give the lowest values, and we're really trying |
| * to determine the lowest. |
| */ |
| calibrate(); |
| calibrate(); |
| calibrate(); |
| } |
| if (write_header(self)) { |
| /* some error occurred, exception has been set */ |
| Py_DECREF(self); |
| self = NULL; |
| } |
| } |
| return (PyObject *) self; |
| } |
| |
| PyDoc_STRVAR(coverage__doc__, |
| "coverage(logfilename) -> profiler\n\ |
| Returns a profiler that doesn't collect any timing information, which is\n\ |
| useful in building a coverage analysis tool."); |
| |
| static PyObject * |
| hotshot_coverage(PyObject *unused, PyObject *args) |
| { |
| char *logfilename; |
| PyObject *result = NULL; |
| |
| if (PyArg_ParseTuple(args, "s:coverage", &logfilename)) { |
| result = hotshot_profiler(unused, args); |
| if (result != NULL) { |
| ProfilerObject *self = (ProfilerObject *) result; |
| self->frametimings = 0; |
| self->linetimings = 0; |
| self->lineevents = 1; |
| } |
| } |
| return result; |
| } |
| |
| PyDoc_VAR(resolution__doc__) = |
| #ifdef MS_WINDOWS |
| PyDoc_STR( |
| "resolution() -> (performance-counter-ticks, update-frequency)\n" |
| "Return the resolution of the timer provided by the QueryPerformanceCounter()\n" |
| "function. The first value is the smallest observed change, and the second\n" |
| "is the result of QueryPerformanceFrequency()." |
| ) |
| #else |
| PyDoc_STR( |
| "resolution() -> (gettimeofday-usecs, getrusage-usecs)\n" |
| "Return the resolution of the timers provided by the gettimeofday() and\n" |
| "getrusage() system calls, or -1 if the call is not supported." |
| ) |
| #endif |
| ; |
| |
| static PyObject * |
| hotshot_resolution(PyObject *self, PyObject *unused) |
| { |
| if (timeofday_diff == 0) { |
| calibrate(); |
| calibrate(); |
| calibrate(); |
| } |
| #ifdef MS_WINDOWS |
| return Py_BuildValue("ii", timeofday_diff, frequency.LowPart); |
| #else |
| return Py_BuildValue("ii", timeofday_diff, rusage_diff); |
| #endif |
| } |
| |
| |
| static PyMethodDef functions[] = { |
| {"coverage", hotshot_coverage, METH_VARARGS, coverage__doc__}, |
| {"profiler", hotshot_profiler, METH_VARARGS, profiler__doc__}, |
| {"logreader", hotshot_logreader, METH_VARARGS, logreader__doc__}, |
| {"resolution", hotshot_resolution, METH_NOARGS, resolution__doc__}, |
| {NULL, NULL} |
| }; |
| |
| |
| void |
| init_hotshot(void) |
| { |
| PyObject *module; |
| |
| Py_TYPE(&LogReaderType) = &PyType_Type; |
| Py_TYPE(&ProfilerType) = &PyType_Type; |
| module = Py_InitModule("_hotshot", functions); |
| if (module != NULL) { |
| char *s = get_version_string(); |
| |
| PyModule_AddStringConstant(module, "__version__", s); |
| free(s); |
| Py_INCREF(&LogReaderType); |
| PyModule_AddObject(module, "LogReaderType", |
| (PyObject *)&LogReaderType); |
| Py_INCREF(&ProfilerType); |
| PyModule_AddObject(module, "ProfilerType", |
| (PyObject *)&ProfilerType); |
| |
| if (ProfilerError == NULL) |
| ProfilerError = PyErr_NewException("hotshot.ProfilerError", |
| NULL, NULL); |
| if (ProfilerError != NULL) { |
| Py_INCREF(ProfilerError); |
| PyModule_AddObject(module, "ProfilerError", ProfilerError); |
| } |
| PyModule_AddIntConstant(module, "WHAT_ENTER", WHAT_ENTER); |
| PyModule_AddIntConstant(module, "WHAT_EXIT", WHAT_EXIT); |
| PyModule_AddIntConstant(module, "WHAT_LINENO", WHAT_LINENO); |
| PyModule_AddIntConstant(module, "WHAT_OTHER", WHAT_OTHER); |
| PyModule_AddIntConstant(module, "WHAT_ADD_INFO", WHAT_ADD_INFO); |
| PyModule_AddIntConstant(module, "WHAT_DEFINE_FILE", WHAT_DEFINE_FILE); |
| PyModule_AddIntConstant(module, "WHAT_DEFINE_FUNC", WHAT_DEFINE_FUNC); |
| PyModule_AddIntConstant(module, "WHAT_LINE_TIMES", WHAT_LINE_TIMES); |
| } |
| } |
