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v0.5.1
Revision 9de0834663f28bee9e6b2c4647ed6128241ed26f authored by Linus Torvalds on 17 October 2006, 02:58:54 UTC, committed by Junio C Hamano on 17 October 2006, 04:27:44 UTC 
Fix hash function in xdiff library
 
Jim Mayering noticed that xdiff library took insanely long time
when comparing files with many identical lines.

This was because the hash function used in the library is broken
on 64-bit architectures and caused too many collisions.

http://thread.gmane.org/gmane.comp.version-control.git/28962/focus=28994

Acked-by: Davide Libenzi <davidel@xmaliserver.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
1 parent 6fe5b7f
Raw File
shell.c 
#include "cache.h"
#include "quote.h"
#include "exec_cmd.h"

static int do_generic_cmd(const char *me, char *arg)
{
	const char *my_argv[4];

	if (!arg || !(arg = sq_dequote(arg)))
		die("bad argument");
	if (strncmp(me, "git-", 4))
		die("bad command");

	my_argv[0] = me + 4;
	my_argv[1] = arg;
	my_argv[2] = NULL;

	return execv_git_cmd(my_argv);
}

static struct commands {
	const char *name;
	int (*exec)(const char *me, char *arg);
} cmd_list[] = {
	{ "git-receive-pack", do_generic_cmd },
	{ "git-upload-pack", do_generic_cmd },
	{ NULL },
};

int main(int argc, char **argv)
{
	char *prog;
	struct commands *cmd;

	/* We want to see "-c cmd args", and nothing else */
	if (argc != 3 || strcmp(argv[1], "-c"))
		die("What do you think I am? A shell?");

	prog = argv[2];
	argv += 2;
	argc -= 2;
	for (cmd = cmd_list ; cmd->name ; cmd++) {
		int len = strlen(cmd->name);
		char *arg;
		if (strncmp(cmd->name, prog, len))
			continue;
		arg = NULL;
		switch (prog[len]) {
		case '\0':
			arg = NULL;
			break;
		case ' ':
			arg = prog + len + 1;
			break;
		default:
			continue;
		}
		exit(cmd->exec(cmd->name, arg));
	}
	die("unrecognized command '%s'", prog);
}
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