* parse.y (dsym): :"symbol string" style should not contain `\0'.

* process.c (proc_detach): new method Proc#detach(pid) which
  create background watcher thread to issue waitpid. [new]

* process.c (rb_detach_process): utility function to detach
  process from C code.

* ext/pty/pty.c (pty_finalize_syswait): terminate watcher thread,
  and detach child process (by creating new idle waitpid watcher
  thread).

* ext/pty/pty.c (pty_syswait): may lost signal stopped child.


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@3561 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 7 deletions

diff --git a/string.c b/string.c
index e4308be0f..a273400d8 100644
--- a/string.c
+++ b/string.c
@@ -614,12 +614,7 @@ rb_str_cat(str, ptr, len)
     if (FL_TEST(str, STR_ASSOC)) {
 	rb_str_modify(str);
 	REALLOC_N(RSTRING(str)->ptr, char, RSTRING(str)->len+len);
-	if (ptr) {
-	    memcpy(RSTRING(str)->ptr + RSTRING(str)->len, ptr, len);
-	}
-	else {
-	    MEMZERO(RSTRING(str)->ptr + RSTRING(str)->len, char, len);
-	}
+	memcpy(RSTRING(str)->ptr + RSTRING(str)->len, ptr, len);
 	RSTRING(str)->len += len;
 	RSTRING(str)->ptr[RSTRING(str)->len] = '\0'; /* sentinel */
 	return str;
@@ -3076,7 +3071,7 @@ rb_str_intern(str)
 	rb_raise(rb_eArgError, "interning empty string");
     }
     if (strlen(RSTRING(str)->ptr) != RSTRING(str)->len)
-	rb_raise(rb_eArgError, "string contains `\\0'");
+	rb_raise(rb_eArgError, "symbol string may not contain `\\0'");
     id = rb_intern(RSTRING(str)->ptr);
     return ID2SYM(id);
 }