systemd/0159-journald-malloc-less-w...

111 lines
4.6 KiB
Diff

From feaaf9358a0bd619ef77dca732aa08e21f5c1a56 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Tue, 10 Dec 2013 06:17:01 -0500
Subject: [PATCH] journald: malloc less when streaming messages
---
src/journal/journald-stream.c | 23 ++++++++++++-----------
src/journal/journald-syslog.c | 4 ++--
src/journal/journald-syslog.h | 2 +-
3 files changed, 15 insertions(+), 14 deletions(-)
diff --git a/src/journal/journald-stream.c b/src/journal/journald-stream.c
index 771a2bd..aae381b 100644
--- a/src/journal/journald-stream.c
+++ b/src/journal/journald-stream.c
@@ -75,9 +75,11 @@ struct StdoutStream {
static int stdout_stream_log(StdoutStream *s, const char *p) {
struct iovec iovec[N_IOVEC_META_FIELDS + 5];
- _cleanup_free_ char *message = NULL, *syslog_priority = NULL, *syslog_facility = NULL, *syslog_identifier = NULL;
- unsigned n = 0;
int priority;
+ char syslog_priority[] = "PRIORITY=\0";
+ char syslog_facility[sizeof("SYSLOG_FACILITY=") + DECIMAL_STR_MAX(priority)];
+ _cleanup_free_ char *message = NULL, *syslog_identifier = NULL;
+ unsigned n = 0;
char *label = NULL;
size_t label_len = 0;
@@ -90,7 +92,7 @@ static int stdout_stream_log(StdoutStream *s, const char *p) {
priority = s->priority;
if (s->level_prefix)
- syslog_parse_priority((char**) &p, &priority, false);
+ syslog_parse_priority(&p, &priority, false);
if (s->forward_to_syslog || s->server->forward_to_syslog)
server_forward_syslog(s->server, syslog_fixup_facility(priority), s->identifier, p, &s->ucred, NULL);
@@ -103,12 +105,13 @@ static int stdout_stream_log(StdoutStream *s, const char *p) {
IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=stdout");
- if (asprintf(&syslog_priority, "PRIORITY=%i", priority & LOG_PRIMASK) >= 0)
- IOVEC_SET_STRING(iovec[n++], syslog_priority);
+ syslog_priority[strlen("PRIORITY=")] = '0' + LOG_PRI(priority);
+ IOVEC_SET_STRING(iovec[n++], syslog_priority);
- if (priority & LOG_FACMASK)
- if (asprintf(&syslog_facility, "SYSLOG_FACILITY=%i", LOG_FAC(priority)) >= 0)
- IOVEC_SET_STRING(iovec[n++], syslog_facility);
+ if (priority & LOG_FACMASK) {
+ snprintf(syslog_facility, sizeof(syslog_facility), "SYSLOG_FACILITY=%i", LOG_FAC(priority));
+ IOVEC_SET_STRING(iovec[n++], syslog_facility);
+ }
if (s->identifier) {
syslog_identifier = strappend("SYSLOG_IDENTIFIER=", s->identifier);
@@ -408,7 +411,7 @@ fail:
int server_open_stdout_socket(Server *s) {
int r;
- struct epoll_event ev;
+ struct epoll_event ev = { .events = EPOLLIN };
assert(s);
@@ -441,8 +444,6 @@ int server_open_stdout_socket(Server *s) {
} else
fd_nonblock(s->stdout_fd, 1);
- zero(ev);
- ev.events = EPOLLIN;
ev.data.fd = s->stdout_fd;
if (epoll_ctl(s->epoll_fd, EPOLL_CTL_ADD, s->stdout_fd, &ev) < 0) {
log_error("Failed to add stdout server fd to epoll object: %m");
diff --git a/src/journal/journald-syslog.c b/src/journal/journald-syslog.c
index c2770a5..5d9b665 100644
--- a/src/journal/journald-syslog.c
+++ b/src/journal/journald-syslog.c
@@ -236,7 +236,7 @@ size_t syslog_parse_identifier(const char **buf, char **identifier, char **pid)
return e;
}
-void syslog_parse_priority(char **p, int *priority, bool with_facility) {
+void syslog_parse_priority(const char **p, int *priority, bool with_facility) {
int a = 0, b = 0, c = 0;
int k;
@@ -365,7 +365,7 @@ void server_process_syslog_message(
assert(buf);
orig = buf;
- syslog_parse_priority((char**) &buf, &priority, true);
+ syslog_parse_priority(&buf, &priority, true);
if (s->forward_to_syslog)
forward_syslog_raw(s, priority, orig, ucred, tv);
diff --git a/src/journal/journald-syslog.h b/src/journal/journald-syslog.h
index 8ccdb77..057ea79 100644
--- a/src/journal/journald-syslog.h
+++ b/src/journal/journald-syslog.h
@@ -25,7 +25,7 @@
int syslog_fixup_facility(int priority) _const_;
-void syslog_parse_priority(char **p, int *priority, bool with_facility);
+void syslog_parse_priority(const char **p, int *priority, bool with_facility);
size_t syslog_parse_identifier(const char **buf, char **identifier, char **pid);
void server_forward_syslog(Server *s, int priority, const char *identifier, const char *message, struct ucred *ucred, struct timeval *tv);