| Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/C/Postgres/src/port/ (Postgres Database Version 18.4©) Datei vom 11.4.2026 mit Größe 1 kB |
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Quelle pgstrsignal.cSprache: C |
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/*------------------------------------------------------------------------- * * pgstrsignal.c * Identify a Unix signal number * * On platforms compliant with modern POSIX, this just wraps strsignal(3). * Elsewhere, we do the best we can. * * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION * src/port/pgstrsignal.c * *------------------------------------------------------------------------- */ #include "c.h" /* * pg_strsignal * * Return a string identifying the given Unix signal number. * * The result is declared "const char *" because callers should not * modify the string. Note, however, that POSIX does not promise that * the string will remain valid across later calls to strsignal(). * * This version guarantees to return a non-NULL pointer, although * some platforms' versions of strsignal() reputedly do not. * * Note that the fallback cases just return constant strings such as * "unrecognized signal". Project style is for callers to print the * numeric signal value along with the result of this function, so * there's no need to work harder than that. */ const char * pg_strsignal(int signum) { const char *result; /* * If we have strsignal(3), use that --- but check its result for NULL. */ #ifdef HAVE_STRSIGNAL result = strsignal(signum); if (result == NULL) result = "unrecognized signal"; #else /* * We used to have code here to try to use sys_siglist[] if available. * However, it seems that all platforms with sys_siglist[] have also had * strsignal() for many years now, so that was just a waste of code. */ result = "(signal names not available on this platform)"; #endif return result; }
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2026-08-25