[project @ 2000-01-12 15:15:17 by simonmar]

[ghc-hetmet.git] / ghc / rts / RtsUtils.c

diff --git a/ghc/rts/RtsUtils.c b/ghc/rts/RtsUtils.c
index e67cd46..24ef889 100644 (file)
--- a/ghc/rts/RtsUtils.c
+++ b/ghc/rts/RtsUtils.c
@@ -1,5 +1,7 @@
 /* -----------------------------------------------------------------------------
- * $Id: RtsUtils.c,v 1.2 1998/12/02 13:28:41 simonm Exp $
+ * $Id: RtsUtils.c,v 1.11 2000/01/12 15:15:17 simonmar Exp $
+ *
+ * (c) The GHC Team, 1998-1999
  *
  * General utility functions used in the RTS.
  *
@@ -11,11 +13,16 @@
 #include "Hooks.h"
 #include "Main.h"
 #include "RtsUtils.h"
+#include "Ticky.h"
 
 #ifdef HAVE_TIME_H
 #include <time.h>
 #endif
 
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+
 #include <stdarg.h>
 
 /* variable-argument error function. */
@@ -24,7 +31,7 @@ void barf(char *s, ...)
 {
   va_list ap;
   va_start(ap,s);
-  fflush(stdout);
+  /* don't fflush(stdout); WORKAROUND bug in Linux glibc */
   if (prog_argv != NULL && prog_argv[0] != NULL) {
     fprintf(stderr, "%s: fatal error: ", prog_argv[0]);
   } else {
@@ -32,14 +39,27 @@ void barf(char *s, ...)
   }
   vfprintf(stderr, s, ap);
   fprintf(stderr, "\n");
+  fflush(stderr);
   stg_exit(EXIT_FAILURE);
 }
 
+void prog_belch(char *s, ...)
+{
+  va_list ap;
+  va_start(ap,s);
+  /* don't fflush(stdout); WORKAROUND bug in Linux glibc */
+  if (prog_argv != NULL && prog_argv[0] != NULL) {
+    fprintf(stderr, "%s: ", prog_argv[0]);
+  } 
+  vfprintf(stderr, s, ap);
+  fprintf(stderr, "\n");
+}
+
 void belch(char *s, ...)
 {
   va_list ap;
   va_start(ap,s);
-  fflush(stdout);
+  /* don't fflush(stdout); WORKAROUND bug in Linux glibc */
   vfprintf(stderr, s, ap);
   fprintf(stderr, "\n");
 }
@@ -52,7 +72,7 @@ stgMallocBytes (int n, char *msg)
     char *space;
 
     if ((space = (char *) malloc((size_t) n)) == NULL) {
-       fflush(stdout);
+      /* don't fflush(stdout); WORKAROUND bug in Linux glibc */
        MallocFailHook((W_) n, msg); /*msg*/
        stg_exit(EXIT_FAILURE);
     }
@@ -65,7 +85,7 @@ stgReallocBytes (void *p, int n, char *msg)
     char *space;
 
     if ((space = (char *) realloc(p, (size_t) n)) == NULL) {
-       fflush(stdout);
+      /* don't fflush(stdout); WORKAROUND bug in Linux glibc */
        MallocFailHook((W_) n, msg); /*msg*/
        exit(EXIT_FAILURE);
     }
@@ -87,20 +107,11 @@ stgReallocWords (void *p, int n, char *msg)
 void 
 _stgAssert (char *filename, nat linenum)
 {
-  fflush(stdout);
+  /* don't fflush(stdout); WORKAROUND bug in Linux glibc */
   fprintf(stderr, "ASSERTION FAILED: file %s, line %u\n", filename, linenum);
   abort();
 }
 
-StgStablePtr errorHandler = -1; /* -1 indicates no handler installed */
-
-void
-raiseError( StgStablePtr handler STG_UNUSED )
-{
-  shutdownHaskell();
-  stg_exit(EXIT_FAILURE);
-}
-
 /* -----------------------------------------------------------------------------
    Stack overflow
    
@@ -108,30 +119,27 @@ raiseError( StgStablePtr handler STG_UNUSED )
    -------------------------------------------------------------------------- */
 
 void
-stackOverflow(nat max_stack_size)
+stackOverflow(void)
 {
-    fflush(stdout);
-    StackOverflowHook(max_stack_size * sizeof(W_)); /*msg*/
+  StackOverflowHook(RtsFlags.GcFlags.maxStkSize * sizeof(W_));
 
 #if defined(TICKY_TICKY)
-    if (RTSflags.TickyFlags.showTickyStats) PrintTickyInfo();
+  if (RtsFlags.TickyFlags.showTickyStats) PrintTickyInfo();
 #endif
-
-    stg_exit(EXIT_FAILURE);
 }
 
 void
 heapOverflow(void)
 {
-    fflush(stdout);
-    OutOfHeapHook(0/*unknown request size*/, 
-                 RtsFlags.GcFlags.maxHeapSize * BLOCK_SIZE);
-
+  /* don't fflush(stdout); WORKAROUND bug in Linux glibc */
+  OutOfHeapHook(0/*unknown request size*/, 
+               RtsFlags.GcFlags.maxHeapSize * BLOCK_SIZE);
+  
 #if defined(TICKY_TICKY)
-    if (Rtsflags.TickyFlags.showTickyStats) PrintTickyInfo();
+  if (RtsFlags.TickyFlags.showTickyStats) PrintTickyInfo();
 #endif
 
-    stg_exit(EXIT_FAILURE);
+  stg_exit(EXIT_FAILURE);
 }
 
 /* -----------------------------------------------------------------------------
@@ -192,6 +200,26 @@ time_str(void)
 #endif
 
 /* -----------------------------------------------------------------------------
+ * Reset a file handle to blocking mode.  We do this for the standard
+ * file descriptors before exiting, because the shell doesn't always
+ * clean up for us.
+ * -------------------------------------------------------------------------- */
+
+void
+resetNonBlockingFd(int fd)
+{
+  long fd_flags;
+
+#if !defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__)
+  /* clear the non-blocking flag on this file descriptor */
+  fd_flags = fcntl(fd, F_GETFL);
+  if (fd_flags & O_NONBLOCK) {
+    fcntl(fd, F_SETFL, fd_flags & ~O_NONBLOCK);
+  }
+#endif
+}
+
+/* -----------------------------------------------------------------------------
    Print large numbers, with punctuation.
    -------------------------------------------------------------------------- */