X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=logging%2Flog.c;h=0d317f031c27774fc96ac4514e7dc7342d961f6a;hb=8486e87ac1fcf63e2a9df72ed8cec28428443885;hp=1a9fed4bc486c8fcec0673daf1569d020dcbd5ad;hpb=ee07b1e97986cfaf1ee0753230191c44fea9f470;p=babeltrace.git

diff --git a/logging/log.c b/logging/log.c
index 1a9fed4b..0d317f03 100644
--- a/logging/log.c
+++ b/logging/log.c
@@ -7,6 +7,7 @@
 #include <babeltrace/babeltrace-internal.h>
 #include <babeltrace/common-internal.h>
 #include <pthread.h>
+#include <assert.h>
 
 #ifdef __CYGWIN__
 extern unsigned long pthread_getsequence_np(pthread_t *);
@@ -128,11 +129,10 @@ extern unsigned long pthread_getsequence_np(pthread_t *);
 #else
 	#define BT_LOG_OPTIMIZE_SIZE 0
 #endif
-/* Size of the log line buffer. The buffer is allocated on stack. It limits
- * maximum length of a log line.
+/* Size of the log line buffer. The buffer is a globally allocated per thread.
  */
 #ifndef BT_LOG_BUF_SZ
-	#define BT_LOG_BUF_SZ 512
+	#define BT_LOG_BUF_SZ (4 * 4096)
 #endif
 /* Default number of bytes in one line of memory output. For large values
  * BT_LOG_BUF_SZ also must be increased.
@@ -289,7 +289,7 @@ extern unsigned long pthread_getsequence_np(pthread_t *);
 		#undef __STRICT_ANSI__
 	#endif
 #endif
-#include <assert.h>
+#include <babeltrace/assert-internal.h>
 #include <ctype.h>
 #include <string.h>
 #include <time.h>
@@ -490,7 +490,8 @@ extern unsigned long pthread_getsequence_np(pthread_t *);
 	#define memccpy _memccpy
 #endif
 
-#if (defined(_MSC_VER) && !defined(__INTEL_COMPILER)) || defined(__MINGW64__)
+#if (defined(_MSC_VER) && !defined(__INTEL_COMPILER)) || \
+		(defined(__MINGW64__) && !defined(__USE_MINGW_ANSI_STDIO))
 	#define vsnprintf(s, sz, fmt, va) fake_vsnprintf(s, sz, fmt, va)
 	static int fake_vsnprintf(char *s, size_t sz, const char *fmt, va_list ap)
 	{
@@ -536,11 +537,10 @@ static void buffer_callback(bt_log_message *msg, char *buf);
 STATIC_ASSERT(eol_fits_eol_sz, sizeof(BT_LOG_EOL) <= BT_LOG_EOL_SZ);
 STATIC_ASSERT(eol_sz_greater_than_zero, 0 < BT_LOG_EOL_SZ);
 STATIC_ASSERT(eol_sz_less_than_buf_sz, BT_LOG_EOL_SZ < BT_LOG_BUF_SZ);
-#if !defined(_WIN32) && !defined(_WIN64)
-	STATIC_ASSERT(buf_sz_less_than_pipe_buf, BT_LOG_BUF_SZ <= PIPE_BUF);
-#endif
 static const char c_hex[] = "0123456789abcdef";
 
+static char __thread logging_buf[4 * 4096];
+
 static INSTRUMENTED_CONST unsigned g_buf_sz = BT_LOG_BUF_SZ - BT_LOG_EOL_SZ;
 static INSTRUMENTED_CONST time_cb g_time_cb = time_callback;
 static INSTRUMENTED_CONST pid_cb g_pid_cb = pid_callback;
@@ -684,6 +684,7 @@ static const bt_log_output out_stderr = {BT_LOG_OUT_STDERR};
 	BT_LOG_DEFINE_GLOBAL_OUTPUT_LEVEL = 0;
 #endif
 
+BT_HIDDEN
 const bt_log_spec _bt_log_stderr_spec =
 {
 	BT_LOG_GLOBAL_FORMAT,
@@ -1261,7 +1262,7 @@ static void _bt_log_write_imp(
 		const int lvl, const char *const tag, const char *const fmt, va_list va)
 {
 	bt_log_message msg;
-	char buf[BT_LOG_BUF_SZ];
+	char *buf = logging_buf;
 	const unsigned mask = log->output->mask;
 	msg.lvl = lvl;
 	msg.tag = tag;