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From b3eadb8523b599af800a7c772606aa0e90cf142f Mon Sep 17 00:00:00 2001
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From: Fujii Masao <fujii@postgresql.org>
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Date: Tue, 19 Jul 2022 17:03:02 +0900
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Subject: [PATCH 1/2] Make storage_mon -h exit just after printing help
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messages.
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Previously, when -h or an invalid option was specified, storage_mon
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printed the help messages, proceeded processing and then could
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throw an error. This was not the behavior that, e.g., users who want
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to specify -h option to see the help messages are expecting. To fix
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this issue, this commit changes storage_mon so that it exits just
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after printing the help messages when -h or an invalid option is
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specified.
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---
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tools/storage_mon.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/tools/storage_mon.c b/tools/storage_mon.c
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index 7b65bb419..1303371f7 100644
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--- a/tools/storage_mon.c
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+++ b/tools/storage_mon.c
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@@ -28,7 +28,7 @@ static void usage(char *name, FILE *f)
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fprintf(f, " --timeout <n> max time to wait for a device test to come back. in seconds (default %d)\n", DEFAULT_TIMEOUT);
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fprintf(f, " --inject-errors-percent <n> Generate EIO errors <n>%% of the time (for testing only)\n");
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fprintf(f, " --verbose emit extra output to stdout\n");
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- fprintf(f, " --help print this messages\n");
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+ fprintf(f, " --help print this messages, then exit\n");
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}
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/* Check one device */
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@@ -178,9 +178,11 @@ int main(int argc, char *argv[])
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break;
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case 'h':
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usage(argv[0], stdout);
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+ exit(0);
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break;
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default:
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usage(argv[0], stderr);
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+ exit(-1);
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break;
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}
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From e62795f02d25a772a239e0a4f9eb9d6470c134ee Mon Sep 17 00:00:00 2001
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From: Fujii Masao <fujii@postgresql.org>
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Date: Tue, 19 Jul 2022 17:56:32 +0900
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Subject: [PATCH 2/2] Fix typo in help message.
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---
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tools/storage_mon.c | 6 +++---
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1 file changed, 3 insertions(+), 3 deletions(-)
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diff --git a/tools/storage_mon.c b/tools/storage_mon.c
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index 1303371f7..3c82d5ee8 100644
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--- a/tools/storage_mon.c
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+++ b/tools/storage_mon.c
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@@ -28,7 +28,7 @@ static void usage(char *name, FILE *f)
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fprintf(f, " --timeout <n> max time to wait for a device test to come back. in seconds (default %d)\n", DEFAULT_TIMEOUT);
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fprintf(f, " --inject-errors-percent <n> Generate EIO errors <n>%% of the time (for testing only)\n");
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fprintf(f, " --verbose emit extra output to stdout\n");
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- fprintf(f, " --help print this messages, then exit\n");
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+ fprintf(f, " --help print this message\n");
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}
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/* Check one device */
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@@ -178,11 +178,11 @@ int main(int argc, char *argv[])
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break;
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case 'h':
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usage(argv[0], stdout);
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- exit(0);
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+ return 0;
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break;
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default:
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usage(argv[0], stderr);
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- exit(-1);
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+ return -1;
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break;
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}
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