From 1d64f21d9949ac1dd59fa722160e46181d92854d Mon Sep 17 00:00:00 2001 From: Jeff King Date: Wed, 28 Jan 2009 02:36:39 -0500 Subject: [PATCH] run_command(): help callers distinguish errors run_command() returns a single integer specifying either an error code or the exit status of the spawned program. The only way to tell the difference is that the error codes are outside of the allowed range of exit status values. Rather than make each caller implement the test against a magic limit, let's provide a macro. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- run-command.h | 1 + 1 file changed, 1 insertion(+) diff --git a/run-command.h b/run-command.h index a8b0c209e..e90d9282f 100644 --- a/run-command.h +++ b/run-command.h @@ -10,6 +10,7 @@ enum { ERR_RUN_COMMAND_WAITPID_SIGNAL, ERR_RUN_COMMAND_WAITPID_NOEXIT, }; +#define IS_RUN_COMMAND_ERR(x) ((x) <= -ERR_RUN_COMMAND_FORK) struct child_process { const char **argv; -- 2.26.2