* [igt-dev] [PATCH i-g-t v2] runner/executor: refactor error handling
@ 2019-03-20 11:24 Simon Ser
2019-03-20 13:05 ` [igt-dev] ✓ Fi.CI.BAT: success for runner/executor: refactor error handling (rev2) Patchwork
2019-03-25 11:17 ` [igt-dev] [PATCH i-g-t v2] runner/executor: refactor error handling Petri Latvala
0 siblings, 2 replies; 3+ messages in thread
From: Simon Ser @ 2019-03-20 11:24 UTC (permalink / raw)
To: igt-dev
* Refactor to use goto error handling
* Make execute_test_process noreturn to remove uninitialized variable
warning
* Check fork() return value
Signed-off-by: Simon Ser <simon.ser@intel.com>
---
runner/executor.c | 68 ++++++++++++++++++++++++-----------------------
1 file changed, 35 insertions(+), 33 deletions(-)
diff --git a/runner/executor.c b/runner/executor.c
index d535c276..289fe498 100644
--- a/runner/executor.c
+++ b/runner/executor.c
@@ -753,9 +753,10 @@ static int monitor_output(pid_t child,
return killed;
}
-static void execute_test_process(int outfd, int errfd,
- struct settings *settings,
- struct job_list_entry *entry)
+static void __attribute__((noreturn))
+execute_test_process(int outfd, int errfd,
+ struct settings *settings,
+ struct job_list_entry *entry)
{
char *argv[4] = {};
size_t rootlen;
@@ -871,6 +872,7 @@ static int execute_next_entry(struct execute_state *state,
sigset_t mask;
int outpipe[2] = { -1, -1 };
int errpipe[2] = { -1, -1 };
+ int outfd, errfd;
char name[32];
pid_t child;
int result;
@@ -884,9 +886,9 @@ static int execute_next_entry(struct execute_state *state,
}
if (!open_output_files(dirfd, outputs, true)) {
- close(dirfd);
fprintf(stderr, "Error opening output files\n");
- return -1;
+ result = -1;
+ goto out_dirfd;
}
if (settings->sync) {
@@ -895,14 +897,9 @@ static int execute_next_entry(struct execute_state *state,
}
if (pipe(outpipe) || pipe(errpipe)) {
- close_outputs(outputs);
- close(dirfd);
- close(outpipe[0]);
- close(outpipe[1]);
- close(errpipe[0]);
- close(errpipe[1]);
fprintf(stderr, "Error creating pipes: %s\n", strerror(errno));
- return -1;
+ result = -1;
+ goto out_pipe;
}
if ((kmsgfd = open("/dev/kmsg", O_RDONLY | O_CLOEXEC)) < 0) {
@@ -923,14 +920,8 @@ static int execute_next_entry(struct execute_state *state,
if (sigfd < 0) {
/* TODO: Handle better */
fprintf(stderr, "Cannot monitor child process with signalfd\n");
- close(outpipe[0]);
- close(errpipe[0]);
- close(outpipe[1]);
- close(errpipe[1]);
- close(kmsgfd);
- close_outputs(outputs);
- close(dirfd);
- return -1;
+ result = -1;
+ goto out_kmsgfd;
}
if (settings->log_level >= LOG_LEVEL_NORMAL) {
@@ -951,21 +942,17 @@ static int execute_next_entry(struct execute_state *state,
* Flush outputs before forking so our (buffered) output won't
* end up in the test outputs.
*/
-
fflush(stdout);
fflush(stderr);
- if ((child = fork())) {
- int outfd = outpipe[0];
- int errfd = errpipe[0];
- close(outpipe[1]);
- close(errpipe[1]);
-
- result = monitor_output(child, outfd, errfd, kmsgfd, sigfd,
- outputs, time_spent, settings);
- } else {
- int outfd = outpipe[1];
- int errfd = errpipe[1];
+ child = fork();
+ if (child < 0) {
+ fprintf(stderr, "Failed to fork()");
+ result = -1;
+ goto out_kmsgfd;
+ } else if (child == 0) {
+ outfd = outpipe[1];
+ errfd = errpipe[1];
close(outpipe[0]);
close(errpipe[0]);
@@ -974,13 +961,28 @@ static int execute_next_entry(struct execute_state *state,
setenv("IGT_SENTINEL_ON_STDERR", "1", 1);
execute_test_process(outfd, errfd, settings, entry);
+ /* unreachable */
}
- /* TODO: Refactor this whole function to use onion teardown */
+ outfd = outpipe[0];
+ errfd = errpipe[0];
close(outpipe[1]);
close(errpipe[1]);
+ outpipe[1] = errpipe[1] = -1;
+
+ result = monitor_output(child, outfd, errfd, kmsgfd, sigfd,
+ outputs, time_spent, settings);
+
+out_kmsgfd:
close(kmsgfd);
+out_pipe:
+ close_outputs(outputs);
+ close(outpipe[0]);
+ close(outpipe[1]);
+ close(errpipe[0]);
+ close(errpipe[1]);
close_outputs(outputs);
+out_dirfd:
close(dirfd);
return result;
--
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2019-03-20 11:24 [igt-dev] [PATCH i-g-t v2] runner/executor: refactor error handling Simon Ser
2019-03-20 13:05 ` [igt-dev] ✓ Fi.CI.BAT: success for runner/executor: refactor error handling (rev2) Patchwork
2019-03-25 11:17 ` [igt-dev] [PATCH i-g-t v2] runner/executor: refactor error handling Petri Latvala
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