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RUBY_DEBUG_LOG supports %p for pid

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This commit is contained in:
Koichi Sasada 2023-10-11 21:26:35 +09:00
parent f413e50ec2
commit 802ca3a102
1 changed files with 40 additions and 1 deletions
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41
debug.c
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@ -285,6 +285,12 @@ static const char *dlf_type_names[] = {
"func", "func",
}; };
#ifdef MAX_PATH
#define DEBUG_LOG_MAX_PATH (MAX_PATH-1)
#else
#define DEBUG_LOG_MAX_PATH 255
#endif
static struct { static struct {
char *mem; char *mem;
unsigned int cnt; unsigned int cnt;
@ -292,6 +298,7 @@ static struct {
unsigned int filters_num; unsigned int filters_num;
bool show_pid; bool show_pid;
rb_nativethread_lock_t lock; rb_nativethread_lock_t lock;
char output_file[DEBUG_LOG_MAX_PATH+1];
FILE *output; FILE *output;
} debug_log; } debug_log;
@ -393,7 +400,39 @@ setup_debug_log(void)
} }
else { else {
ruby_debug_log_mode |= ruby_debug_log_file; ruby_debug_log_mode |= ruby_debug_log_file;
if ((debug_log.output = fopen(log_config, "w")) == NULL) {
// pid extension with %p
unsigned long len = strlen(log_config);
for (unsigned long i=0, j=0; i<len; i++) {
const char c = log_config[i];
if (c == '%') {
i++;
switch (log_config[i]) {
case '%':
debug_log.output_file[j++] = '%';
break;
case 'p':
snprintf(debug_log.output_file + j, DEBUG_LOG_MAX_PATH - j, "%d", getpid());
j = strlen(debug_log.output_file);
break;
default:
fprintf(stderr, "can not parse RUBY_DEBUG_LOG filename: %s\n", log_config);
exit(1);
}
}
else {
debug_log.output_file[j++] = c;
}
if (j >= DEBUG_LOG_MAX_PATH) {
fprintf(stderr, "RUBY_DEBUG_LOG=%s is too long\n", log_config);
exit(1);
}
}
if ((debug_log.output = fopen(debug_log.output_file, "w")) == NULL) {
fprintf(stderr, "can not open %s for RUBY_DEBUG_LOG\n", log_config); fprintf(stderr, "can not open %s for RUBY_DEBUG_LOG\n", log_config);
exit(1); exit(1);
} }