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	tnew test program - plan9port - [fork] Plan 9 from user space
	git clone git://src.adamsgaard.dk/plan9port
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	---
	commit 793d93626b7d01ff47e1c0b483e25ccf894ccb51
	parent ba15d71b0cf27ba89d14b547d7ded643e5de6a01
	Author: rsc <devnull@localhost>
	Date: Fri, 22 Oct 2004 17:15:47 +0000

	new test program

	Diffstat:
	A src/libthread/tspawn.c \| 41 +++++++++++++++++++++++++++++…

	1 file changed, 41 insertions(+), 0 deletions(-)
	---
	diff --git a/src/libthread/tspawn.c b/src/libthread/tspawn.c
	t@@ -0,0 +1,41 @@
	+#include <lib9.h>
	+#include <thread.h>
	+extern int _threaddebuglevel;
	+
	+void
	+doexec(void *v)
	+{
	+ int fd[3];
	+ char **argv = v;
	+
	+ print("exec failed: %r\n");
	+ sendp(threadwaitchan(), nil);
	+ threadexits(nil);
	+}
	+
	+void
	+threadmain(int argc, char **argv)
	+{
	+ int fd[3];
	+ Channel *c;
	+ Waitmsg *w;
	+
	+ ARGBEGIN{
	+ case 'D':
	+ _threaddebuglevel = ~0;
	+ break;
	+ }ARGEND
	+
	+ c = threadwaitchan();
	+ fd[0] = dup(0, -1);
	+ fd[1] = dup(1, -1);
	+ fd[2] = dup(2, -1);
	+ if(threadspawn(fd, argv[0], argv) < 0)
	+ sysfatal("threadspawn: %r");
	+ w = recvp(c);
	+ if(w == nil)
	+ print("exec/recvp failed: %r\n");
	+ else
	+ print("%d %lud %lud %lud %s\n", w->pid, w->time[0], w->time[1]…
	+ threadexits(nil);
	+}