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sd-journal: cache results of parsing environment variables

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This commit is contained in:
Yu Watanabe
2023-04-04 18:32:12 +09:00
parent 01aa59979b
commit 9dfbae203e
1 changed files with 23 additions and 12 deletions
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src/libsystemd/sd-journal/journal-file.c
+23 -12
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@@ -27,6 +27,7 @@
#include "journal-internal.h"
#include "lookup3.h"
#include "memory-util.h"
#include "missing_threads.h"
#include "path-util.h"
#include "prioq.h"
#include "random-util.h"
@@ -313,27 +314,37 @@ JournalFile* journal_file_close(JournalFile *f) {
}
static bool keyed_hash_requested(void) {
static thread_local int cached = -1;
int r;
r = getenv_bool("SYSTEMD_JOURNAL_KEYED_HASH");
if (r >= 0)
return r;
if (r != -ENXIO)
log_debug_errno(r, "Failed to parse $SYSTEMD_JOURNAL_KEYED_HASH environment variable, ignoring: %m");
if (cached < 0) {
r = getenv_bool("SYSTEMD_JOURNAL_KEYED_HASH");
if (r < 0) {
if (r != -ENXIO)
log_debug_errno(r, "Failed to parse $SYSTEMD_JOURNAL_KEYED_HASH environment variable, ignoring: %m");
cached = true;
} else
cached = r;
}
return true;
return cached;
}
static bool compact_mode_requested(void) {
static thread_local int cached = -1;
int r;
r = getenv_bool("SYSTEMD_JOURNAL_COMPACT");
if (r >= 0)
return r;
if (r != -ENXIO)
log_debug_errno(r, "Failed to parse $SYSTEMD_JOURNAL_COMPACT environment variable, ignoring: %m");
if (cached < 0) {
r = getenv_bool("SYSTEMD_JOURNAL_COMPACT");
if (r < 0) {
if (r != -ENXIO)
log_debug_errno(r, "Failed to parse $SYSTEMD_JOURNAL_COMPACT environment variable, ignoring: %m");
cached = true;
} else
cached = r;
}
return true;
return cached;
}
static int journal_file_init_header(