This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
[perl #121431] Add support for test.valgrind parallel testing.
[perl5.git] / reentr.c
index 8b655da..917807c 100644 (file)
--- a/reentr.c
+++ b/reentr.c
@@ -1,17 +1,25 @@
-/*
+/* -*- buffer-read-only: t -*-
+ *
  *    reentr.c
  *
- *    Copyright (c) 1997-2003, Larry Wall
+ *    Copyright (C) 2002, 2003, 2005, 2006, 2007 by Larry Wall and others
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
  *
- *  !!!!!!!   DO NOT EDIT THIS FILE   !!!!!!!
- *  This file is built by reentrl.pl from data in reentr.pl.
+ * !!!!!!!   DO NOT EDIT THIS FILE   !!!!!!!
+ * This file is built by regen/reentr.pl from data in regen/reentr.pl.
+ * Any changes made here will be lost!
  *
  * "Saruman," I said, standing away from him, "only one hand at a time can
  *  wield the One, and you know that well, so do not trouble to say we!"
  *
+ * This file contains a collection of automatically created wrappers
+ * (created by running reentr.pl) for reentrant (thread-safe) versions of
+ * various library calls, such as getpwent_r.  The wrapping is done so
+ * that other files like pp_sys.c calling those library functions need not
+ * care about the differences between various platforms' idiosyncrasies
+ * regarding these reentrant interfaces.  
  */
 
 #include "EXTERN.h"
@@ -32,12 +40,10 @@ Perl_reentrant_size(pTHX) {
 #ifdef HAS_CTIME_R
        PL_reentrant_buffer->_ctime_size = REENTRANTSMALLSIZE;
 #endif /* HAS_CTIME_R */
-#ifdef HAS_DRAND48_R
-#endif /* HAS_DRAND48_R */
 #ifdef HAS_GETGRNAM_R
 #   if defined(HAS_SYSCONF) && defined(_SC_GETGR_R_SIZE_MAX) && !defined(__GLIBC__)
        PL_reentrant_buffer->_grent_size = sysconf(_SC_GETGR_R_SIZE_MAX);
-       if (PL_reentrant_buffer->_grent_size == -1)
+       if (PL_reentrant_buffer->_grent_size == (size_t) -1)
                PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
 #   else
 #       if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
@@ -72,7 +78,7 @@ Perl_reentrant_size(pTHX) {
 #ifdef HAS_GETPWNAM_R
 #   if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
        PL_reentrant_buffer->_pwent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
-       if (PL_reentrant_buffer->_pwent_size == -1)
+       if (PL_reentrant_buffer->_pwent_size == (size_t) -1)
                PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
 #   else
 #       if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
@@ -94,7 +100,7 @@ Perl_reentrant_size(pTHX) {
 #ifdef HAS_GETSPNAM_R
 #   if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
        PL_reentrant_buffer->_spent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
-       if (PL_reentrant_buffer->_spent_size == -1)
+       if (PL_reentrant_buffer->_spent_size == (size_t) -1)
                PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
 #   else
 #       if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
@@ -108,12 +114,6 @@ Perl_reentrant_size(pTHX) {
 #       endif
 #   endif 
 #endif /* HAS_GETSPNAM_R */
-#ifdef HAS_GMTIME_R
-#endif /* HAS_GMTIME_R */
-#ifdef HAS_LOCALTIME_R
-#endif /* HAS_LOCALTIME_R */
-#ifdef HAS_RANDOM_R
-#endif /* HAS_RANDOM_R */
 #ifdef HAS_READDIR_R
        /* This is the size Solaris recommends.
         * (though we go static, should use pathconf() instead) */
@@ -140,70 +140,60 @@ Perl_reentrant_size(pTHX) {
 void
 Perl_reentrant_init(pTHX) {
 #ifdef USE_REENTRANT_API
-       New(31337, PL_reentrant_buffer, 1, REENTR);
+       Newx(PL_reentrant_buffer, 1, REENTR);
        Perl_reentrant_size(aTHX);
 #ifdef HAS_ASCTIME_R
-       New(31338, PL_reentrant_buffer->_asctime_buffer, PL_reentrant_buffer->_asctime_size, char);
+       Newx(PL_reentrant_buffer->_asctime_buffer, PL_reentrant_buffer->_asctime_size, char);
 #endif /* HAS_ASCTIME_R */
 #ifdef HAS_CRYPT_R
-#ifdef __GLIBC__
-       PL_reentrant_buffer->_crypt_struct.initialized = 0;
-       /* work around glibc-2.2.5 bug */
-       PL_reentrant_buffer->_crypt_struct.current_saltbits = 0;
+#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
+       PL_reentrant_buffer->_crypt_struct_buffer = 0;
 #endif
 #endif /* HAS_CRYPT_R */
 #ifdef HAS_CTIME_R
-       New(31338, PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char);
+       Newx(PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char);
 #endif /* HAS_CTIME_R */
-#ifdef HAS_DRAND48_R
-#endif /* HAS_DRAND48_R */
 #ifdef HAS_GETGRNAM_R
 #   ifdef USE_GRENT_FPTR
        PL_reentrant_buffer->_grent_fptr = NULL;
 #   endif
-       New(31338, PL_reentrant_buffer->_grent_buffer, PL_reentrant_buffer->_grent_size, char);
+       Newx(PL_reentrant_buffer->_grent_buffer, PL_reentrant_buffer->_grent_size, char);
 #endif /* HAS_GETGRNAM_R */
 #ifdef HAS_GETHOSTBYNAME_R
 #if   !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
-       New(31338, PL_reentrant_buffer->_hostent_buffer, PL_reentrant_buffer->_hostent_size, char);
+       Newx(PL_reentrant_buffer->_hostent_buffer, PL_reentrant_buffer->_hostent_size, char);
 #endif
 #endif /* HAS_GETHOSTBYNAME_R */
 #ifdef HAS_GETLOGIN_R
-       New(31338, PL_reentrant_buffer->_getlogin_buffer, PL_reentrant_buffer->_getlogin_size, char);
+       Newx(PL_reentrant_buffer->_getlogin_buffer, PL_reentrant_buffer->_getlogin_size, char);
 #endif /* HAS_GETLOGIN_R */
 #ifdef HAS_GETNETBYNAME_R
 #if   !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
-       New(31338, PL_reentrant_buffer->_netent_buffer, PL_reentrant_buffer->_netent_size, char);
+       Newx(PL_reentrant_buffer->_netent_buffer, PL_reentrant_buffer->_netent_size, char);
 #endif
 #endif /* HAS_GETNETBYNAME_R */
 #ifdef HAS_GETPROTOBYNAME_R
 #if   !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
-       New(31338, PL_reentrant_buffer->_protoent_buffer, PL_reentrant_buffer->_protoent_size, char);
+       Newx(PL_reentrant_buffer->_protoent_buffer, PL_reentrant_buffer->_protoent_size, char);
 #endif
 #endif /* HAS_GETPROTOBYNAME_R */
 #ifdef HAS_GETPWNAM_R
 #   ifdef USE_PWENT_FPTR
        PL_reentrant_buffer->_pwent_fptr = NULL;
 #   endif
-       New(31338, PL_reentrant_buffer->_pwent_buffer, PL_reentrant_buffer->_pwent_size, char);
+       Newx(PL_reentrant_buffer->_pwent_buffer, PL_reentrant_buffer->_pwent_size, char);
 #endif /* HAS_GETPWNAM_R */
 #ifdef HAS_GETSERVBYNAME_R
 #if   !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
-       New(31338, PL_reentrant_buffer->_servent_buffer, PL_reentrant_buffer->_servent_size, char);
+       Newx(PL_reentrant_buffer->_servent_buffer, PL_reentrant_buffer->_servent_size, char);
 #endif
 #endif /* HAS_GETSERVBYNAME_R */
 #ifdef HAS_GETSPNAM_R
 #   ifdef USE_SPENT_FPTR
        PL_reentrant_buffer->_spent_fptr = NULL;
 #   endif
-       New(31338, PL_reentrant_buffer->_spent_buffer, PL_reentrant_buffer->_spent_size, char);
+       Newx(PL_reentrant_buffer->_spent_buffer, PL_reentrant_buffer->_spent_size, char);
 #endif /* HAS_GETSPNAM_R */
-#ifdef HAS_GMTIME_R
-#endif /* HAS_GMTIME_R */
-#ifdef HAS_LOCALTIME_R
-#endif /* HAS_LOCALTIME_R */
-#ifdef HAS_RANDOM_R
-#endif /* HAS_RANDOM_R */
 #ifdef HAS_READDIR_R
        PL_reentrant_buffer->_readdir_struct = (struct dirent*)safemalloc(PL_reentrant_buffer->_readdir_size);
 #endif /* HAS_READDIR_R */
@@ -211,13 +201,13 @@ Perl_reentrant_init(pTHX) {
        PL_reentrant_buffer->_readdir64_struct = (struct dirent64*)safemalloc(PL_reentrant_buffer->_readdir64_size);
 #endif /* HAS_READDIR64_R */
 #ifdef HAS_SETLOCALE_R
-       New(31338, PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
+       Newx(PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
 #endif /* HAS_SETLOCALE_R */
 #ifdef HAS_STRERROR_R
-       New(31338, PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char);
+       Newx(PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char);
 #endif /* HAS_STRERROR_R */
 #ifdef HAS_TTYNAME_R
-       New(31338, PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char);
+       Newx(PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char);
 #endif /* HAS_TTYNAME_R */
 
 #endif /* USE_REENTRANT_API */
@@ -230,12 +220,13 @@ Perl_reentrant_free(pTHX) {
        Safefree(PL_reentrant_buffer->_asctime_buffer);
 #endif /* HAS_ASCTIME_R */
 #ifdef HAS_CRYPT_R
+#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
+       Safefree(PL_reentrant_buffer->_crypt_struct_buffer);
+#endif
 #endif /* HAS_CRYPT_R */
 #ifdef HAS_CTIME_R
        Safefree(PL_reentrant_buffer->_ctime_buffer);
 #endif /* HAS_CTIME_R */
-#ifdef HAS_DRAND48_R
-#endif /* HAS_DRAND48_R */
 #ifdef HAS_GETGRNAM_R
        Safefree(PL_reentrant_buffer->_grent_buffer);
 #endif /* HAS_GETGRNAM_R */
@@ -268,12 +259,6 @@ Perl_reentrant_free(pTHX) {
 #ifdef HAS_GETSPNAM_R
        Safefree(PL_reentrant_buffer->_spent_buffer);
 #endif /* HAS_GETSPNAM_R */
-#ifdef HAS_GMTIME_R
-#endif /* HAS_GMTIME_R */
-#ifdef HAS_LOCALTIME_R
-#endif /* HAS_LOCALTIME_R */
-#ifdef HAS_RANDOM_R
-#endif /* HAS_RANDOM_R */
 #ifdef HAS_READDIR_R
        Safefree(PL_reentrant_buffer->_readdir_struct);
 #endif /* HAS_READDIR_R */
@@ -297,10 +282,18 @@ Perl_reentrant_free(pTHX) {
 void*
 Perl_reentrant_retry(const char *f, ...)
 {
-    dTHX;
     void *retptr = NULL;
+    va_list ap;
 #ifdef USE_REENTRANT_API
-#  if defined(USE_HOSTENT_BUFFER) || defined(USE_GRENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PWENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SRVENT_BUFFER)
+    dTHX;
+    /* Easier to special case this here than in embed.pl. (Look at what it
+       generates for proto.h) */
+    PERL_ARGS_ASSERT_REENTRANT_RETRY;
+#endif
+    va_start(ap, f);
+    {
+#ifdef USE_REENTRANT_API
+#  if defined(USE_HOSTENT_BUFFER) || defined(USE_GRENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PWENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SERVENT_BUFFER)
     void *p0;
 #  endif
 #  if defined(USE_SERVENT_BUFFER)
@@ -312,9 +305,6 @@ Perl_reentrant_retry(const char *f, ...)
 #  if defined(USE_HOSTENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SERVENT_BUFFER)
     int anint;
 #  endif
-    va_list ap;
-
-    va_start(ap, f);
 
     switch (PL_op->op_type) {
 #ifdef USE_HOSTENT_BUFFER
@@ -338,7 +328,7 @@ Perl_reentrant_retry(const char *f, ...)
                    retptr = gethostbyaddr(p0, asize, anint); break;
                case OP_GHBYNAME:
                    p0 = va_arg(ap, void *);
-                   retptr = gethostbyname(p0); break;
+                   retptr = gethostbyname((char *)p0); break;
                case OP_GHOSTENT:
                    retptr = gethostent(); break;
                default:
@@ -366,9 +356,13 @@ Perl_reentrant_retry(const char *f, ...)
                switch (PL_op->op_type) {
                case OP_GGRNAM:
                    p0 = va_arg(ap, void *);
-                   retptr = getgrnam(p0); break;
+                   retptr = getgrnam((char *)p0); break;
                case OP_GGRGID:
+#if Gid_t_size < INTSIZE
+                   gid = (Gid_t)va_arg(ap, int);
+#else
                    gid = va_arg(ap, Gid_t);
+#endif
                    retptr = getgrgid(gid); break;
                case OP_GGRENT:
                    retptr = getgrent(); break;
@@ -401,7 +395,7 @@ Perl_reentrant_retry(const char *f, ...)
                    retptr = getnetbyaddr(net, anint); break;
                case OP_GNBYNAME:
                    p0 = va_arg(ap, void *);
-                   retptr = getnetbyname(p0); break;
+                   retptr = getnetbyname((char *)p0); break;
                case OP_GNETENT:
                    retptr = getnetent(); break;
                default:
@@ -429,12 +423,18 @@ Perl_reentrant_retry(const char *f, ...)
                switch (PL_op->op_type) {
                case OP_GPWNAM:
                    p0 = va_arg(ap, void *);
-                   retptr = getpwnam(p0); break;
+                   retptr = getpwnam((char *)p0); break;
                case OP_GPWUID:
+#if Uid_t_size < INTSIZE
+                   uid = (Uid_t)va_arg(ap, int);
+#else
                    uid = va_arg(ap, Uid_t);
+#endif
                    retptr = getpwuid(uid); break;
+#if defined(HAS_GETPWENT) || defined(HAS_GETPWENT_R)
                case OP_GPWENT:
                    retptr = getpwent(); break;
+#endif
                default:
                    SETERRNO(ERANGE, LIB_INVARG);
                    break;
@@ -459,7 +459,7 @@ Perl_reentrant_retry(const char *f, ...)
                switch (PL_op->op_type) {
                case OP_GPBYNAME:
                    p0 = va_arg(ap, void *);
-                   retptr = getprotobyname(p0); break;
+                   retptr = getprotobyname((char *)p0); break;
                case OP_GPBYNUMBER:
                    anint = va_arg(ap, int);
                    retptr = getprotobynumber(anint); break;
@@ -490,11 +490,11 @@ Perl_reentrant_retry(const char *f, ...)
                case OP_GSBYNAME:
                    p0 = va_arg(ap, void *);
                    p1 = va_arg(ap, void *);
-                   retptr = getservbyname(p0, p1); break;
+                   retptr = getservbyname((char *)p0, (char *)p1); break;
                case OP_GSBYPORT:
                    anint = va_arg(ap, int);
                    p0 = va_arg(ap, void *);
-                   retptr = getservbyport(anint, p0); break;
+                   retptr = getservbyport(anint, (char *)p0); break;
                case OP_GSERVENT:
                    retptr = getservent(); break;
                default:
@@ -509,9 +509,12 @@ Perl_reentrant_retry(const char *f, ...)
        /* Not known how to retry, so just fail. */
        break;
     }
-
-    va_end(ap);
+#else
+    PERL_UNUSED_ARG(f);
 #endif
+    }
+    va_end(ap);
     return retptr;
 }
 
+/* ex: set ro: */