diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c index d94fb1e2ea..e70855254a 100644 --- a/qemu-io-cmds.c +++ b/qemu-io-cmds.c @@ -2048,6 +2048,51 @@ static const cmdinfo_t abort_cmd = { .oneline = "simulate a program crash using abort(3)", }; +static void sigraise_help(void) +{ + printf( +"\n" +" raises the given signal\n" +"\n" +" Example:\n" +" 'sigraise %i' - raises SIGTERM\n" +"\n" +" Invokes raise(signal), where \"signal\" is the mandatory integer argument\n" +" given to sigraise.\n" +"\n", SIGTERM); +} + +static int sigraise_f(BlockDriverState *bs, int argc, char **argv); + +static const cmdinfo_t sigraise_cmd = { + .name = "sigraise", + .cfunc = sigraise_f, + .argmin = 1, + .argmax = 1, + .flags = CMD_NOFILE_OK, + .args = "signal", + .oneline = "raises a signal", + .help = sigraise_help, +}; + +static int sigraise_f(BlockDriverState *bs, int argc, char **argv) +{ + int sig = cvtnum(argv[1]); + if (sig < 0) { + printf("non-numeric signal number argument -- %s\n", argv[1]); + return 0; + } + + /* Using raise() to kill this process does not necessarily flush all open + * streams. At least stdout and stderr (although the latter should be + * non-buffered anyway) should be flushed, though. */ + fflush(stdout); + fflush(stderr); + + raise(sig); + return 0; +} + static void sleep_cb(void *opaque) { bool *expired = opaque; @@ -2202,4 +2247,5 @@ static void __attribute((constructor)) init_qemuio_commands(void) qemuio_add_command(&wait_break_cmd); qemuio_add_command(&abort_cmd); qemuio_add_command(&sleep_cmd); + qemuio_add_command(&sigraise_cmd); }