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| author | Jeff King <peff@peff.net> | 2008-07-22 03:12:46 -0400 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2008-07-25 21:29:44 -0700 |
| commit | ccf08bc3d06050fbe9b76846f6e2ab6d1cd6bd09 (patch) | |
| tree | 329272d9a8a8b220f0daa5764ad5cbde554d977e | |
| parent | b0320eaf6a25fbc4adf35d611c27006e6d853aa8 (diff) | |
| download | git-ccf08bc3d06050fbe9b76846f6e2ab6d1cd6bd09.tar.gz | |
run-command: add pre-exec callback
This is a function provided by the caller which is called
_after_ the process is forked, but before the spawned
program is executed. On platforms (like mingw) where
subprocesses are forked and executed in a single call, the
preexec callback is simply ignored.
This will be used in the following patch to do some setup
for 'less' that must happen in the forked child.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rw-r--r-- | run-command.c | 2 | ||||
| -rw-r--r-- | run-command.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/run-command.c b/run-command.c index 6e29fdf9e2..73d0c31276 100644 --- a/run-command.c +++ b/run-command.c @@ -110,6 +110,8 @@ int start_command(struct child_process *cmd) unsetenv(*cmd->env); } } + if (cmd->preexec_cb) + cmd->preexec_cb(); if (cmd->git_cmd) { execv_git_cmd(cmd->argv); } else { diff --git a/run-command.h b/run-command.h index 5203a9ebb1..4f2b7d7d40 100644 --- a/run-command.h +++ b/run-command.h @@ -42,6 +42,7 @@ struct child_process { unsigned no_stderr:1; unsigned git_cmd:1; /* if this is to be git sub-command */ unsigned stdout_to_stderr:1; + void (*preexec_cb)(void); }; int start_command(struct child_process *); |