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Check return value of waitpid. Don't evaluate status of children if waitpid 

wasn't successful.
Henning Meier-Geinitz <henning@meier-geinitz.de>
DEVEL_2_0_BRANCH-1
Henning Geinitz 2002-05-05 13:15:49 +00:00
rodzic a34ce8e8ad
commit f28fc112e0
2 zmienionych plików z 10 dodań i 5 usunięć
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13
backend/test.c
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@ -41,7 +41,7 @@
This backend is for testing frontends. This backend is for testing frontends.
*/ */
#define BUILD 14 #define BUILD 15
#include "../include/sane/config.h" #include "../include/sane/config.h"
@ -1218,13 +1218,18 @@ finish_pass (Test_Device * test_device)
if (test_device->reader_pid > 0) if (test_device->reader_pid > 0)
{ {
int status; int status;
int pid;
DBG (2, "finish_pass: terminating reader process %d\n", DBG (2, "finish_pass: terminating reader process %d\n",
test_device->reader_pid); test_device->reader_pid);
kill (test_device->reader_pid, SIGTERM); kill (test_device->reader_pid, SIGTERM);
waitpid (test_device->reader_pid, &status, 0); pid = waitpid (test_device->reader_pid, &status, 0);
if (pid < 0)
if (WIFEXITED (status)) {
DBG (1, "finish_pass: waitpid failed, already terminated? (%s)\n",
strerror (errno));
}
else if (WIFEXITED (status))
{ {
DBG (2, "finish_pass: reader process terminated with status %s\n", DBG (2, "finish_pass: reader process terminated with status %s\n",
sane_strstatus (WEXITSTATUS (status))); sane_strstatus (WEXITSTATUS (status)));

2
doc/descriptions/test.desc
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@ -10,7 +10,7 @@
; ;
:backend "test" ; name of backend :backend "test" ; name of backend
:version "1.0-14" ; version of backend :version "1.0-15" ; version of backend
:status :beta ; :alpha, :beta, :stable, :new :status :beta ; :alpha, :beta, :stable, :new
:manpage "sane-test" ; name of manpage (if it exists) :manpage "sane-test" ; name of manpage (if it exists)
:url "http://www.meier-geinitz.de/sane/test-backend/" ; backend's web page :url "http://www.meier-geinitz.de/sane/test-backend/" ; backend's web page