shithub: vim

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Add plumber support

	Vim now opens files sent through the plumber.
	This is done by spawning a dedicated thread that listens on the plumber 'edit'
	port and runs an edit command when receiving a file.
	In order for the screen to properly refresh we call the shell_resized() function
	but this is a bit overkill and we should find a better way to have the refresh
	occur without recreating the whole term screen.

--- a/os_plan9.c

+++ b/os_plan9.c

@@ -20,6 +20,7 @@

 #include <draw.h>

 #include <keyboard.h>

 #include <event.h>

+#include <plumb.h>

 #include "vim.h"

 /* Vim defines Display.  We need it for libdraw. */

@@ -52,6 +53,8 @@

 static Font *boldfont;

 static Font *curfont;

 static int curmode; /* TODO remove this, use cterm_normal_fg_color instead for comparing */

+static int plumbkey;

+static int done;

 /* Timeouts are handled using alarm() and a signal handler.

  * When an alarm happens during a syscall, the syscall is

@@ -76,6 +79,41 @@

     err9(msg);

 }

+static void drain_plumb_events(void) {

+    Event e;

+    Plumbmsg *m;

+    char *addr;

+    int l = ECMD_ONE;

+

+    while(ecanread(plumbkey)){

+	eread(plumbkey, &e);

+	m = e.v;

+	addr = plumblookup(m->attr, "addr");

+	if(addr)

+		l = atoi(addr);

+	do_ecmd(0, (char_u*)m->data, NULL, NULL, (linenr_T)l, ECMD_HIDE);

+	shell_resized();

+    }

+}

+

+static void start_plumber_thread(void)

+{

+	switch (rfork(RFPROC|RFMEM)){

+	case -1:

+		fprintf(stderr, "rfork failed\n");

+		return;

+	case 0:

+		while(!done){

+			drain_plumb_events();

+			_SLEEP(100);

+		}

+		exit(0);

+	default:

+		break;

+	}

+}

+

+

 int mch_has_wildcard(char_u *p) {

     for (; *p; mb_ptr_adv(p)) {

         if (*p == '\\' && p[1] != NUL) {

@@ -918,10 +956,13 @@

     /* Mouse events must be enabled to receive window resizes. */

     einit(Emouse | Ekeyboard);

+    plumbkey = eplumb(512, "edit");

+    start_plumber_thread();

     scr_inited = TRUE;

 }

 void mch_init(void) {

+    done = FALSE;

     signal(SIGALRM, sigalrm);

     scr_init();

@@ -938,6 +979,7 @@

 }

 void mch_exit(int r) {

+    done = TRUE;

     ml_close_all(TRUE);    /* remove all memfiles */

     /* libdraw shuts down automatically on exit */

     exit(r);