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	Use atexit to ensure proper shutdown. - sam - An updated version of the sam tex…
	git clone git://vernunftzentrum.de/sam.git
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	---
	commit 1d7381514a5589c78eca12a92b341fbd0de9ff2f
	parent 3a8f45f007849613466d20ed16760917bdb2bf9d
	Author: Rob King <[email protected]>
	Date: Thu, 20 Oct 2016 16:04:18 -0500

	Use atexit to ensure proper shutdown.

	Diffstat:
	sam/file.c \| 4 +---
	sam/mesg.c \| 1 -
	sam/sam.c \| 3 ++-
	sam/sam.h \| 1 +

	4 files changed, 4 insertions(+), 5 deletions(-)
	---
	diff --git a/sam/file.c b/sam/file.c
	@@ -20,7 +20,7 @@ enum{
	MAXCACHE=STRSIZE /* max length of cache. must be < 32K-BLOCKSIZE */
	};

	-static void
	+void
	freebufs(void)
	{
	Bterm(undobuf);
	@@ -34,8 +34,6 @@ Fstart(void)
	undobuf = Bopen();
	snarfbuf = Bopen();
	plan9buf = Bopen();
	-
	- atexit(freebufs);
	}

	void
	diff --git a/sam/mesg.c b/sam/mesg.c
	@@ -491,7 +491,6 @@ inmesg(Tmesg type)
	break;

	case Texit:
	- shutdown();
	exit(EXIT_SUCCESS);
	}
	return true;
	diff --git a/sam/sam.c b/sam/sam.c
	@@ -135,12 +135,12 @@ main(int argc, char *argv[])
	if(file.nused)
	current(file.filepptr[0]);

	+ atexit(shutdown);
	setjmp(mainloop);
	cmdloop();

	trytoquit(); /* if we already q'ed, quitok will be true */

	- shutdown();
	exit(EXIT_SUCCESS);
	}

	@@ -172,6 +172,7 @@ shutdown(void)
	free(tempfile.listptr);

	freecmdlists();
	+ freebufs();
	}

	void
	diff --git a/sam/sam.h b/sam/sam.h
	@@ -207,6 +207,7 @@ void error_s(Err, char*);
	int execute(File*, Posn, Posn);
	int filematch(File, String);
	void filename(File*);
	+void freebufs(void);
	void freecmd(void);
	void freecmdlists(void);
	File getfile(String);