From 0b70bbd66f3938fc153730e55c041d3c08a1fab1 Mon Sep 17 00:00:00 2001
From: nick black <dankamongmen@gmail.com>
Date: Sun, 16 Aug 2020 02:38:53 -0400
Subject: [PATCH] tty_emit(): loop on EAGAIN #894

---
 src/lib/internal.h  | 20 ++++++++++++++------
 src/lib/notcurses.c |  2 +-
 2 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/src/lib/internal.h b/src/lib/internal.h
index 1f142663c..aa3377dbb 100644
--- a/src/lib/internal.h
+++ b/src/lib/internal.h
@@ -464,15 +464,23 @@ tty_emit(const char* name __attribute__ ((unused)), const char* seq, int fd){
   if(!seq){
     return -1;
   }
-  ssize_t ret = write(fd, seq, strlen(seq));
-  if(ret < 0){
+  size_t slen = strlen(seq);
+  size_t written = 0;
+  do{
+    ssize_t ret = write(fd, seq, slen);
+    if(ret > 0){
+      written += ret;
+    }
+    if(ret < 0){
+      if(errno != EAGAIN){
+        break;
+      }
+    }
+  }while(written < slen);
+  if(written < slen){
 //fprintf(stderr, "Error emitting %zub %s escape (%s)\n", strlen(seq), name, strerror(errno));
     return -1;
   }
-  if((size_t)ret != strlen(seq)){
-//fprintf(stderr, "Short write (%db) for %zub %s sequence\n", ret, strlen(seq), name);
-    return -1;
-  }
   return 0;
 }
 
diff --git a/src/lib/notcurses.c b/src/lib/notcurses.c
index 8c60ec345..c42390782 100644
--- a/src/lib/notcurses.c
+++ b/src/lib/notcurses.c
@@ -87,7 +87,7 @@ notcurses_stop_minimal(notcurses* nc){
 }
 
 // this wildly unsafe handler will attempt to restore the screen upon
-// reception of SIG{INT, SEGV, ABRT, QUIT}. godspeed you, black emperor!
+// reception of SIG{INT, SEGV, ABRT, QUIT, TERM}. godspeed you, black emperor!
 static void
 fatal_handler(int signo){
   notcurses* nc = atomic_load(&signal_nc);