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signal stuff not included on BSD 4.2 or SunOs

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This commit is contained in:
ceriel 1991-09-18 09:46:08 +00:00
parent dfcbc661ca
commit abb71310d2
1 changed files with 6 additions and 0 deletions
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6
lang/occam/lib/channel.c
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@ -1,7 +1,9 @@
/* $Header$ */ /* $Header$ */
/* channel.c - basic channel handling routines */ /* channel.c - basic channel handling routines */
#include <errno.h> #include <errno.h>
#ifndef __BSD4_2
#include <signal.h> #include <signal.h>
#endif
#define __CHANNEL__ #define __CHANNEL__
#ifdef __USG #ifdef __USG
#include <termio.h> #include <termio.h>
@ -112,7 +114,9 @@ void chan_out(v, c) long v; register chan *c;
} }
} }
#ifndef __BSD4_2
static int timeout(); static int timeout();
#endif
int chan_any(c) register chan *c; int chan_any(c) register chan *c;
{ {
@ -189,6 +193,7 @@ int chan_any(c) register chan *c;
} }
} }
#ifndef __BSD4_2
/* The ch=getc(fp) in the above function calls read(2) to do its task, but if /* The ch=getc(fp) in the above function calls read(2) to do its task, but if
* there's no input on the file (pipe or terminal) then the read will block. * there's no input on the file (pipe or terminal) then the read will block.
* To stop this read from blocking, we use the fact that if the read is * To stop this read from blocking, we use the fact that if the read is
@ -204,6 +209,7 @@ static int timeout(sig)
signal(SIGALRM, timeout); signal(SIGALRM, timeout);
alarm(1); alarm(1);
} }
#endif
static void disaster() static void disaster()
{ {