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Encapsulate buffer allocation in buffered writer

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This commit is contained in:
Yinan Zhang 2020-02-03 15:56:13 -08:00
parent bdc08b5158
commit 9cac3fa8f5
6 changed files with 215 additions and 80 deletions
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22
src/prof_log.c
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@ -629,19 +629,12 @@ prof_log_stop(tsdn_t *tsdn) {
struct prof_emitter_cb_arg_s arg;
arg.fd = fd;
char *buf = (char *)iallocztm(tsdn, PROF_LOG_STOP_BUFSIZE,
sz_size2index(PROF_LOG_STOP_BUFSIZE), false, NULL, true,
arena_get(TSDN_NULL, 0, true), true);
buf_writer_t buf_writer;
if (buf == NULL) {
emitter_init(&emitter, emitter_output_json_compact,
prof_emitter_write_cb, &arg);
} else {
buf_writer_init(&buf_writer, prof_emitter_write_cb, &arg, buf,
PROF_LOG_STOP_BUFSIZE);
emitter_init(&emitter, emitter_output_json_compact,
buf_writer_cb, &buf_writer);
}
buf_writer_init(tsdn, &buf_writer, prof_emitter_write_cb, &arg, NULL,
PROF_LOG_STOP_BUFSIZE);
emitter_init(&emitter, emitter_output_json_compact,
buf_writer_get_write_cb(&buf_writer),
buf_writer_get_cbopaque(&buf_writer));
emitter_begin(&emitter);
prof_log_emit_metadata(&emitter);
@ -650,10 +643,7 @@ prof_log_stop(tsdn_t *tsdn) {
prof_log_emit_allocs(tsd, &emitter);
emitter_end(&emitter);
if (buf != NULL) {
buf_writer_flush(&buf_writer);
idalloctm(tsdn, buf, NULL, NULL, true, true);
}
buf_writer_terminate(tsdn, &buf_writer);
/* Reset global state. */
if (log_tables_initialized) {