cory/tildefriends
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Child processes send trace information back to the parent. Also fixed weird double-activation of children.

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git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3729 ed5197a5-7fde-0310-b194-c3ffbd925b24
This commit is contained in:
Cory McWilliams
2022-01-02 18:17:58 +00:00
parent d550092bd3
commit 23b15a8dc5
7 changed files with 71 additions and 32 deletions
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60
src/trace.c
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@ -12,7 +12,8 @@
#define _countof(a) ((int)(sizeof((a)) / sizeof(*(a))))
#endif
enum {
enum
{
k_buffer_size = 4 * 1024 * 1024,
};
@ -30,13 +31,33 @@ typedef struct _tf_trace_t
char buffer[k_buffer_size];
int write_offset;
tf_trace_write_callback_t* callback;
void* user_data;
tf_trace_stack_t* stack;
} tf_trace_t;
static void _trace_append(tf_trace_t* trace, const char* buffer, size_t size, void* user_data)
{
if (trace->write_offset + size + 2 >= k_buffer_size)
{
trace->buffer[trace->write_offset] = '\0';
trace->write_offset = 0;
}
if (trace->write_offset + size + 2 < k_buffer_size)
{
memcpy(trace->buffer + trace->write_offset, buffer, size);
trace->write_offset += size;
trace->buffer[trace->write_offset++] = '\n';
}
}
tf_trace_t* tf_trace_create()
{
tf_trace_t* trace = malloc(sizeof(tf_trace_t));
memset(trace, 0, sizeof(*trace));
trace->callback = _trace_append;
return trace;
}
@ -51,6 +72,11 @@ void tf_trace_destroy(tf_trace_t* trace)
free(trace);
}
void tf_trace_raw(tf_trace_t* trace, const char* buffer, size_t size)
{
trace->callback(trace, buffer, size, trace->user_data);
}
static int64_t _trace_ts()
{
int64_t result = 0;
@ -62,22 +88,6 @@ static int64_t _trace_ts()
return result;
}
static void _trace_append(tf_trace_t* trace, const char* buffer, size_t size)
{
if (trace->write_offset + size + 2 >= k_buffer_size)
{
trace->buffer[trace->write_offset] = '\0';
trace->write_offset = 0;
}
if (trace->write_offset + size + 2 < k_buffer_size)
{
memcpy(trace->buffer + trace->write_offset, buffer, size);
trace->write_offset += size;
trace->buffer[trace->write_offset++] = '\n';
}
}
void tf_trace_counter(tf_trace_t* trace, const char* name, int argc, const char** arg_names, const int64_t* arg_values)
{
if (!trace)
@ -93,7 +103,7 @@ void tf_trace_counter(tf_trace_t* trace, const char* name, int argc, const char*
p += snprintf(line + p, sizeof(line) - p, "\"%s\": %" PRId64 "%s", arg_names[i], arg_values[i], i == argc - 1 ? "}}," : ", ");
}
_trace_append(trace, line, p);
trace->callback(trace, line, p, trace->user_data);
}
void tf_trace_begin(tf_trace_t* trace, const char* name)
@ -137,7 +147,7 @@ void tf_trace_begin(tf_trace_t* trace, const char* name)
}
}
p += snprintf(line + p, sizeof(line) - p, "\"},");
_trace_append(trace, line, p);
trace->callback(trace, line, p, trace->user_data);
}
void tf_trace_end(tf_trace_t* trace)
@ -158,6 +168,10 @@ void tf_trace_end(tf_trace_t* trace)
name = stack->names[stack->count - 1];
stack->count--;
}
if (!name)
{
return;
}
char line[1024];
int p = snprintf(line, sizeof(line), "{\"ph\": \"E\", \"pid\": %d, \"tid\": 0, \"ts\": %" PRId64 ", \"name\": \"", getpid(), _trace_ts());
@ -179,7 +193,7 @@ void tf_trace_end(tf_trace_t* trace)
}
}
p += snprintf(line + p, sizeof(line) - p, "\"},");
_trace_append(trace, line, p);
trace->callback(trace, line, p, trace->user_data);
}
char* tf_trace_export(tf_trace_t* trace)
@ -235,6 +249,12 @@ static int _tf_trace_sqlite_callback(unsigned int t, void* c, void* p, void* x)
return 0;
}
void tf_trace_set_write_callback(tf_trace_t* trace, tf_trace_write_callback_t* callback, void* user_data)
{
trace->callback = callback;
trace->user_data = user_data;
}
void tf_trace_sqlite(tf_trace_t* trace, sqlite3* sqlite)
{
if (sqlite)