regcomp.c: Zero width constructs shouldn't be SIMPLE

[perl5.git] / iperlsys.h

diff --git a/iperlsys.h b/iperlsys.h
index 9604ad4..c176ad5 100644 (file)
--- a/iperlsys.h
+++ b/iperlsys.h
@@ -3,9 +3,8 @@
  *
  * This file defines the system level functionality that perl needs.
  *
- * When using C, this definition is in the form of a set of macros
- * that can be #defined to the system-level function (or a wrapper
- * provided elsewhere).
+ * When using C, this definition is in the form of a set of macros that can be
+ * #defined to the system-level function (or a wrapper provided elsewhere).
  *
  * GSAR 21-JUN-98
  */
@@ -19,8 +18,8 @@
  * XXX := functional group
  * YYY := stdlib/OS function name
  *
- * Continuing with the theme of PerlIO, all OS functionality was
- * encapsulated into one of several interfaces.
+ * Continuing with the theme of PerlIO, all OS functionality was encapsulated
+ * into one of several interfaces.
  *
  * PerlIO - stdio
  * PerlLIO - low level I/O
@@ -50,11 +49,14 @@
 */
 #include "perlio.h"
 
+typedef Signal_t (*Sighandler1_t) (int);
+typedef Signal_t (*Sighandler3_t) (int, Siginfo_t*, void*);
+
 #ifndef Sighandler_t
-#  if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
-typedef Signal_t (*Sighandler_t) (int, siginfo_t*, void*);
+#  ifdef PERL_USE_3ARG_SIGHANDLER
+typedef Sighandler3_t Sighandler_t;
 #  else
-typedef Signal_t (*Sighandler_t) (int);
+typedef Sighandler1_t Sighandler_t;
 #  endif
 #endif
 
@@ -63,7 +65,7 @@ typedef Signal_t (*Sighandler_t) (int);
 /* IPerlStdIO          */
 struct IPerlStdIO;
 struct IPerlStdIOInfo;
-typedef FILE*          (*LPStdin)(struct IPerlStdIO*);
+typedef FILE*           (*LPStdin)(struct IPerlStdIO*);
 typedef FILE*          (*LPStdout)(struct IPerlStdIO*);
 typedef FILE*          (*LPStderr)(struct IPerlStdIO*);
 typedef FILE*          (*LPOpen)(struct IPerlStdIO*, const char*,
@@ -318,7 +320,9 @@ struct IPerlStdIOInfo
 #if defined(__VMS)
      /* Unusual definition of ungetc() here to accommodate fast_sv_gets()'
       * belief that it can mix getc/ungetc with reads from stdio buffer */
+START_EXTERN_C
      int decc$ungetc(int __c, FILE *__stream);
+END_EXTERN_C
 #    define PerlSIO_ungetc(c,f) ((c) == EOF ? EOF : \
             ((*(f) && !((*(f))->_flag & _IONBF) && \
             ((*(f))->_ptr > (*(f))->_base)) ? \
@@ -476,7 +480,7 @@ typedef char*               (*LPENVGetenv_len)(struct IPerlEnv*,
 #endif
 #ifdef WIN32
 typedef unsigned long  (*LPEnvOsID)(struct IPerlEnv*);
-typedef char*          (*LPEnvLibPath)(struct IPerlEnv*, const char*,
+typedef char*          (*LPEnvLibPath)(struct IPerlEnv*, WIN32_NO_REGISTRY_M_(const char*)
                                        STRLEN *const len);
 typedef char*          (*LPEnvSiteLibPath)(struct IPerlEnv*, const char*,
                                            STRLEN *const len);
@@ -548,7 +552,7 @@ struct IPerlEnvInfo
 #define PerlEnv_os_id()                                                \
        (*PL_Env->pEnvOsID)(PL_Env)
 #define PerlEnv_lib_path(str, lenp)                            \
-       (*PL_Env->pLibPath)(PL_Env,(str),(lenp))
+       (*PL_Env->pLibPath)(PL_Env,WIN32_NO_REGISTRY_M_(str)(lenp))
 #define PerlEnv_sitelib_path(str, lenp)                                \
        (*PL_Env->pSiteLibPath)(PL_Env,(str),(lenp))
 #define PerlEnv_vendorlib_path(str, lenp)                      \
@@ -557,10 +561,18 @@ struct IPerlEnvInfo
        (*PL_Env->pGetChildIO)(PL_Env, ptr)
 #endif
 
-#else  /* PERL_IMPLICIT_SYS */
+#else  /* below is ! PERL_IMPLICIT_SYS */
+#  ifdef USE_ITHREADS
 
-#define PerlEnv_putenv(str)            putenv((str))
-#define PerlEnv_getenv(str)            getenv((str))
+     /* Use the comma operator to return 0/non-zero, while avoiding putting
+      * this in an inline function */
+#    define PerlEnv_putenv(str)        (ENV_LOCK, (putenv(str)                 \
+                                            ? (ENV_UNLOCK, 1)           \
+                                            : (ENV_UNLOCK, 0)))
+#  else
+#    define PerlEnv_putenv(str)                putenv(str)
+#  endif
+#define PerlEnv_getenv(str)            mortal_getenv(str)
 #define PerlEnv_getenv_len(str,l)      getenv_len((str), (l))
 #ifdef HAS_ENVGETENV
 #  define PerlEnv_ENVgetenv(str)       ENVgetenv((str))
@@ -573,7 +585,7 @@ struct IPerlEnvInfo
 
 #ifdef WIN32
 #define PerlEnv_os_id()                        win32_os_id()
-#define PerlEnv_lib_path(str, lenp)    win32_get_privlib(str, lenp)
+#define PerlEnv_lib_path(str, lenp)    win32_get_privlib(WIN32_NO_REGISTRY_M_(str) lenp)
 #define PerlEnv_sitelib_path(str, lenp)        win32_get_sitelib(str, lenp)
 #define PerlEnv_vendorlib_path(str, lenp)      win32_get_vendorlib(str, lenp)
 #define PerlEnv_get_child_IO(ptr)      win32_get_child_IO(ptr)
@@ -583,7 +595,9 @@ struct IPerlEnvInfo
 #define PerlEnv_get_childdir()         win32_get_childdir()
 #define PerlEnv_free_childdir(d)       win32_free_childdir((d))
 #else
-#define PerlEnv_clearenv()             clearenv()
+#define PerlEnv_clearenv(str)          (ENV_LOCK, (clearenv(str)           \
+                                                    ? (ENV_UNLOCK, 1)       \
+                                                    : (ENV_UNLOCK, 0)))
 #define PerlEnv_get_childenv()         get_childenv()
 #define PerlEnv_free_childenv(e)       free_childenv((e))
 #define PerlEnv_get_childdir()         get_childdir()
@@ -598,6 +612,8 @@ struct IPerlEnvInfo
 
 #if defined(PERL_IMPLICIT_SYS)
 
+struct utimbuf; /* prevent gcc warning about the use below */
+
 /* IPerlLIO            */
 struct IPerlLIO;
 struct IPerlLIOInfo;
@@ -756,7 +772,6 @@ struct IPerlLIOInfo
 #  define PerlLIO_lstat(name, buf)     PerlLIO_stat((name), (buf))
 #endif
 #define PerlLIO_mktemp(file)           mktemp((file))
-#define PerlLIO_mkstemp(file)          mkstemp((file))
 #define PerlLIO_open(file, flag)       open((file), (flag))
 #define PerlLIO_open3(file, flag, perm)        open((file), (flag), (perm))
 #define PerlLIO_read(fd, buf, count)   read((fd), (buf), (count))
@@ -1413,11 +1428,5 @@ struct IPerlSockInfo
 #endif /* __Inc__IPerl___ */
 
 /*
- * Local variables:
- * c-indentation-style: bsd
- * c-basic-offset: 4
- * indent-tabs-mode: nil
- * End:
- *
  * ex: set ts=8 sts=4 sw=4 et:
  */