#include #include "subcmd-util.h" #include "sigchain.h" #define SIGCHAIN_MAX_SIGNALS 32 struct sigchain_signal { sigchain_fun *old; int n; int alloc; }; static struct sigchain_signal signals[SIGCHAIN_MAX_SIGNALS]; static void check_signum(int sig) { if (sig < 1 || sig >= SIGCHAIN_MAX_SIGNALS) die("BUG: signal out of range: %d", sig); } static int sigchain_push(int sig, sigchain_fun f) { struct sigchain_signal *s = signals + sig; check_signum(sig); ALLOC_GROW(s->old, s->n + 1, s->alloc); s->old[s->n] = signal(sig, f); if (s->old[s->n] == SIG_ERR) return -1; s->n++; return 0; } int sigchain_pop(int sig) { struct sigchain_signal *s = signals + sig; check_signum(sig); if (s->n < 1) return 0; if (signal(sig, s->old[s->n - 1]) == SIG_ERR) return -1; s->n--; return 0; } void sigchain_push_common(sigchain_fun f) { sigchain_push(SIGINT, f); sigchain_push(SIGHUP, f); sigchain_push(SIGTERM, f); sigchain_push(SIGQUIT, f); sigchain_push(SIGPIPE, f); } 69b05ef4b5916cb40b127dfab1da88'/> net-next plumbingsTobias Klauser
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authorAxel Haslam <ahaslam@baylibre.com>2016-11-03 12:11:42 +0100
committerMark Brown <broonie@kernel.org>2016-11-04 12:15:25 -0600
commit1b5b42216469b05ef4b5916cb40b127dfab1da88 (patch)
tree088f4074ec93c863025c27126c400f85009ad92a /tools/perf/arch/arm/util/unwind-libdw.c
parent1001354ca34179f3db924eb66672442a173147dc (diff)
regulator: core: Add new API to poll for error conditions
Regulator consumers can receive event notifications when errors are reported to the driver, but currently, there is no way for a regulator consumer to know when the error is over. To allow a regulator consumer to poll for error conditions add a new API: regulator_get_error_flags. Signed-off-by: Axel Haslam <ahaslam@baylibre.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'tools/perf/arch/arm/util/unwind-libdw.c')