logcat: Add -D print dividers flag
Permits a single thread to collect several log buffer and
to separate them out into named buckets by keying off the
dividers ---------
Change-Id: I5a92c67383a73ea566cb9b9732d26d88d9c41c66
diff --git a/logcat/logcat.cpp b/logcat/logcat.cpp
index 829a0af..d831d66 100644
--- a/logcat/logcat.cpp
+++ b/logcat/logcat.cpp
@@ -1,4 +1,4 @@
-// Copyright 2006-2014 The Android Open Source Project
+// Copyright 2006-2015 The Android Open Source Project
#include <assert.h>
#include <ctype.h>
@@ -178,18 +178,19 @@
return;
}
-static void maybePrintStart(log_device_t* dev) {
- if (!dev->printed) {
- dev->printed = true;
+static void maybePrintStart(log_device_t* dev, bool printDividers) {
+ if (!dev->printed || printDividers) {
if (g_devCount > 1 && !g_printBinary) {
char buf[1024];
- snprintf(buf, sizeof(buf), "--------- beginning of %s\n",
+ snprintf(buf, sizeof(buf), "--------- %s %s\n",
+ dev->printed ? "switch to" : "beginning of",
dev->device);
if (write(g_outFD, buf, strlen(buf)) < 0) {
perror("output error");
exit(-1);
}
}
+ dev->printed = true;
}
}
@@ -227,6 +228,7 @@
" -n <count> Sets max number of rotated logs to <count>, default 4\n"
" -v <format> Sets the log print format, where <format> is:\n\n"
" brief color long process raw tag thread threadtime time\n\n"
+ " -D print dividers between each log buffer\n"
" -c clear (flush) the entire log and exit\n"
" -d dump the log and then exit (don't block)\n"
" -t <count> print only the most recent <count> lines (implies -d)\n"
@@ -329,6 +331,7 @@
log_device_t* devices = NULL;
log_device_t* dev;
bool needBinary = false;
+ bool printDividers = false;
struct logger_list *logger_list;
unsigned int tail_lines = 0;
log_time tail_time(log_time::EPOCH);
@@ -345,7 +348,7 @@
for (;;) {
int ret;
- ret = getopt(argc, argv, "cdt:T:gG:sQf:r:n:v:b:BSpP:");
+ ret = getopt(argc, argv, "cdDt:T:gG:sQf:r:n:v:b:BSpP:");
if (ret < 0) {
break;
@@ -398,6 +401,10 @@
}
break;
+ case 'D':
+ printDividers = true;
+ break;
+
case 'g':
getLogSize = 1;
break;
@@ -839,8 +846,10 @@
if (needBinary)
android::g_eventTagMap = android_openEventTagMap(EVENT_TAG_MAP_FILE);
+ dev = NULL;
while (1) {
struct log_msg log_msg;
+ log_device_t* d;
int ret = android_logger_list_read(logger_list, &log_msg);
if (ret == 0) {
@@ -865,17 +874,20 @@
exit(EXIT_FAILURE);
}
- for(dev = devices; dev; dev = dev->next) {
- if (android_name_to_log_id(dev->device) == log_msg.id()) {
+ for(d = devices; d; d = d->next) {
+ if (android_name_to_log_id(d->device) == log_msg.id()) {
break;
}
}
- if (!dev) {
+ if (!d) {
fprintf(stderr, "read: Unexpected log ID!\n");
exit(EXIT_FAILURE);
}
- android::maybePrintStart(dev);
+ if (dev != d) {
+ dev = d;
+ android::maybePrintStart(dev, printDividers);
+ }
if (android::g_printBinary) {
android::printBinary(&log_msg);
} else {
