67 lines
2.4 KiB
Diff
67 lines
2.4 KiB
Diff
From 509b535eaad77038984604eac486b0bb76accc6d Mon Sep 17 00:00:00 2001
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From: Yu Watanabe <watanabe.yu+github@gmail.com>
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Date: Tue, 4 Apr 2023 16:43:44 +0900
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Subject: [PATCH] sd-journal: cache results of parsing environment variables
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(cherry picked from commit 9dfbae203e3afa500163bc46e0070c4cb2180aac)
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Resolves: #2183546
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---
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src/libsystemd/sd-journal/journal-file.c | 34 +++++++++++++++---------
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1 file changed, 22 insertions(+), 12 deletions(-)
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diff --git a/src/libsystemd/sd-journal/journal-file.c b/src/libsystemd/sd-journal/journal-file.c
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index cf86bab2dc..00de564499 100644
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--- a/src/libsystemd/sd-journal/journal-file.c
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+++ b/src/libsystemd/sd-journal/journal-file.c
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@@ -296,27 +296,37 @@ JournalFile* journal_file_close(JournalFile *f) {
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}
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static bool keyed_hash_requested(void) {
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+ static thread_local int cached = -1;
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int r;
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- r = getenv_bool("SYSTEMD_JOURNAL_KEYED_HASH");
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- if (r >= 0)
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- return r;
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- if (r != -ENXIO)
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- log_debug_errno(r, "Failed to parse $SYSTEMD_JOURNAL_KEYED_HASH environment variable, ignoring: %m");
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+ if (cached < 0) {
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+ r = getenv_bool("SYSTEMD_JOURNAL_KEYED_HASH");
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+ if (r < 0) {
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+ if (r != -ENXIO)
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+ log_debug_errno(r, "Failed to parse $SYSTEMD_JOURNAL_KEYED_HASH environment variable, ignoring: %m");
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+ cached = true;
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+ } else
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+ cached = r;
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+ }
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- return true;
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+ return cached;
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}
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static bool compact_mode_requested(void) {
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+ static thread_local int cached = -1;
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int r;
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- r = getenv_bool("SYSTEMD_JOURNAL_COMPACT");
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- if (r >= 0)
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- return r;
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- if (r != -ENXIO)
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- log_debug_errno(r, "Failed to parse $SYSTEMD_JOURNAL_COMPACT environment variable, ignoring: %m");
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+ if (cached < 0) {
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+ r = getenv_bool("SYSTEMD_JOURNAL_COMPACT");
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+ if (r < 0) {
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+ if (r != -ENXIO)
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+ log_debug_errno(r, "Failed to parse $SYSTEMD_JOURNAL_COMPACT environment variable, ignoring: %m");
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+ cached = true;
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+ } else
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+ cached = r;
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+ }
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- return true;
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+ return cached;
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}
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static int journal_file_init_header(JournalFile *f, JournalFileFlags file_flags, JournalFile *template) {
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