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ruby-changes:30275

From: usa <ko1@a...>
Date: Fri, 2 Aug 2013 20:40:05 +0900 (JST)
Subject: [ruby-changes:30275] usa:r42327 (ruby_1_9_3): merge revision(s) 42212,42214: [Backport #8669]

usa	2013-08-02 20:39:44 +0900 (Fri, 02 Aug 2013)

  New Revision: 42327

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=42327

  Log:
    merge revision(s) 42212,42214: [Backport #8669]
    
    * string.c: add internal API rb_str_locktmp_ensure().
    
    * io.c (io_fread): use rb_str_locktmp_ensure().
      [ruby-core:56121] [Bug #8669]
    
    * test/ruby/test_io.rb: add a test for above.
    
    * io.c (io_getpartial): use rb_str_locktmp_ensure().
      [ruby-core:56121] [Bug #8669]
    
    * io.c (rb_io_sysread): ditto.
    
    * test/ruby/test_io.rb: add tests for above.

  Modified directories:
    branches/ruby_1_9_3/
  Modified files:
    branches/ruby_1_9_3/ChangeLog
    branches/ruby_1_9_3/internal.h
    branches/ruby_1_9_3/io.c
    branches/ruby_1_9_3/string.c
    branches/ruby_1_9_3/test/ruby/test_io.rb
    branches/ruby_1_9_3/version.h

Index: ruby_1_9_3/ChangeLog
===================================================================
--- ruby_1_9_3/ChangeLog	(revision 42326)
+++ ruby_1_9_3/ChangeLog	(revision 42327)
@@ -1,3 +1,21 @@ https://github.com/ruby/ruby/blob/trunk/ruby_1_9_3/ChangeLog#L1
+Fri Aug  2 20:34:06 2013  Masaki Matsushita  <glass.saga@g...>
+
+	* io.c (io_getpartial): use rb_str_locktmp_ensure().
+	  [ruby-core:56121] [Bug #8669]
+
+	* io.c (rb_io_sysread): ditto.
+
+	* test/ruby/test_io.rb: add tests for above.
+
+Fri Aug  2 20:34:06 2013  Masaki Matsushita  <glass.saga@g...>
+
+	* string.c: add internal API rb_str_locktmp_ensure().
+
+	* io.c (io_fread): use rb_str_locktmp_ensure().
+	  [ruby-core:56121] [Bug #8669]
+
+	* test/ruby/test_io.rb: add a test for above.
+
 Fri Aug  2 20:03:39 2013  Nobuyoshi Nakada  <nobu@r...>
 
 	* rational.c (f_round_common): Rational is expected to be returned by
Index: ruby_1_9_3/string.c
===================================================================
--- ruby_1_9_3/string.c	(revision 42326)
+++ ruby_1_9_3/string.c	(revision 42327)
@@ -1751,6 +1751,13 @@ rb_str_unlocktmp(VALUE str) https://github.com/ruby/ruby/blob/trunk/ruby_1_9_3/string.c#L1751
     return str;
 }
 
+VALUE
+rb_str_locktmp_ensure(VALUE str, VALUE (*func)(VALUE), VALUE arg)
+{
+    rb_str_locktmp(str);
+    return rb_ensure(func, arg, rb_str_unlocktmp, str);
+}
+
 void
 rb_str_set_len(VALUE str, long len)
 {
Index: ruby_1_9_3/io.c
===================================================================
--- ruby_1_9_3/io.c	(revision 42326)
+++ ruby_1_9_3/io.c	(revision 42327)
@@ -1816,15 +1816,31 @@ io_bufread(char *ptr, long len, rb_io_t https://github.com/ruby/ruby/blob/trunk/ruby_1_9_3/io.c#L1816
     return len - n;
 }
 
+struct bufread_arg {
+    char *str_ptr;
+    long len;
+    rb_io_t *fptr;
+};
+
+static VALUE
+bufread_call(VALUE arg)
+{
+    struct bufread_arg *p = (struct bufread_arg *)arg;
+    p->len = io_bufread(p->str_ptr, p->len, p->fptr);
+    return Qundef;
+}
+
 static long
 io_fread(VALUE str, long offset, rb_io_t *fptr)
 {
     long len;
+    struct bufread_arg arg;
 
-    rb_str_locktmp(str);
-    len = io_bufread(RSTRING_PTR(str) + offset, RSTRING_LEN(str) - offset,
-		     fptr);
-    rb_str_unlocktmp(str);
+    arg.str_ptr = RSTRING_PTR(str) + offset;
+    arg.len = RSTRING_LEN(str) - offset;
+    arg.fptr = fptr;
+    rb_str_locktmp_ensure(str, bufread_call, (VALUE)&arg);
+    len = arg.len;
     if (len < 0) rb_sys_fail_path(fptr->pathv);
     return len;
 }
@@ -2124,12 +2140,27 @@ rb_io_set_nonblock(rb_io_t *fptr) https://github.com/ruby/ruby/blob/trunk/ruby_1_9_3/io.c#L2140
     }
 }
 
+struct read_internal_arg {
+    int fd;
+    char *str_ptr;
+    long len;
+};
+
+static VALUE
+read_internal_call(VALUE arg)
+{
+    struct read_internal_arg *p = (struct read_internal_arg *)arg;
+    p->len = rb_read_internal(p->fd, p->str_ptr, p->len);
+    return Qundef;
+}
+
 static VALUE
 io_getpartial(int argc, VALUE *argv, VALUE io, int nonblock)
 {
     rb_io_t *fptr;
     VALUE length, str;
     long n, len;
+    struct read_internal_arg arg;
 
     rb_scan_args(argc, argv, "11", &length, &str);
 
@@ -2154,9 +2185,11 @@ io_getpartial(int argc, VALUE *argv, VAL https://github.com/ruby/ruby/blob/trunk/ruby_1_9_3/io.c#L2185
         if (nonblock) {
             rb_io_set_nonblock(fptr);
         }
-	rb_str_locktmp(str);
-	n = rb_read_internal(fptr->fd, RSTRING_PTR(str), len);
-	rb_str_unlocktmp(str);
+	arg.fd = fptr->fd;
+	arg.str_ptr = RSTRING_PTR(str);
+	arg.len = len;
+	rb_str_locktmp_ensure(str, read_internal_call, (VALUE)&arg);
+	n = arg.len;
         if (n < 0) {
             if (!nonblock && rb_io_wait_readable(fptr->fd))
                 goto again;
@@ -4203,6 +4236,7 @@ rb_io_sysread(int argc, VALUE *argv, VAL https://github.com/ruby/ruby/blob/trunk/ruby_1_9_3/io.c#L4236
     VALUE len, str;
     rb_io_t *fptr;
     long n, ilen;
+    struct read_internal_arg arg;
 
     rb_scan_args(argc, argv, "11", &len, &str);
     ilen = NUM2LONG(len);
@@ -4222,8 +4256,11 @@ rb_io_sysread(int argc, VALUE *argv, VAL https://github.com/ruby/ruby/blob/trunk/ruby_1_9_3/io.c#L4256
     rb_io_check_closed(fptr);
 
     rb_str_locktmp(str);
-    n = rb_read_internal(fptr->fd, RSTRING_PTR(str), ilen);
-    rb_str_unlocktmp(str);
+    arg.fd = fptr->fd;
+    arg.str_ptr = RSTRING_PTR(str);
+    arg.len = ilen;
+    rb_ensure(read_internal_call, (VALUE)&arg, rb_str_unlocktmp, str);
+    n = arg.len;
 
     if (n == -1) {
 	rb_sys_fail_path(fptr->pathv);
Index: ruby_1_9_3/internal.h
===================================================================
--- ruby_1_9_3/internal.h	(revision 42326)
+++ ruby_1_9_3/internal.h	(revision 42327)
@@ -165,6 +165,7 @@ size_t rb_strftime_timespec(char *s, siz https://github.com/ruby/ruby/blob/trunk/ruby_1_9_3/internal.h#L165
 
 /* string.c */
 int rb_str_buf_cat_escaped_char(VALUE result, unsigned int c, int unicode_p);
+VALUE rb_str_locktmp_ensure(VALUE str, VALUE (*func)(VALUE), VALUE arg);
 
 /* struct.c */
 VALUE rb_struct_init_copy(VALUE copy, VALUE s);
Index: ruby_1_9_3/version.h
===================================================================
--- ruby_1_9_3/version.h	(revision 42326)
+++ ruby_1_9_3/version.h	(revision 42327)
@@ -1,5 +1,5 @@ https://github.com/ruby/ruby/blob/trunk/ruby_1_9_3/version.h#L1
 #define RUBY_VERSION "1.9.3"
-#define RUBY_PATCHLEVEL 456
+#define RUBY_PATCHLEVEL 457
 
 #define RUBY_RELEASE_DATE "2013-08-02"
 #define RUBY_RELEASE_YEAR 2013
Index: ruby_1_9_3/test/ruby/test_io.rb
===================================================================
--- ruby_1_9_3/test/ruby/test_io.rb	(revision 42326)
+++ ruby_1_9_3/test/ruby/test_io.rb	(revision 42327)
@@ -2178,4 +2178,46 @@ End https://github.com/ruby/ruby/blob/trunk/ruby_1_9_3/test/ruby/test_io.rb#L2178
       end;
     }
   end if /mswin|mingw/ =~ RUBY_PLATFORM
+
+  def test_read_unlocktmp_ensure
+    bug8669 = '[ruby-core:56121] [Bug #8669]'
+
+    str = ""
+    r, = IO.pipe
+    t = Thread.new { r.read(nil, str) }
+    sleep 0.1 until t.stop?
+    t.raise
+    sleep 0.1 while t.alive?
+    assert_nothing_raised(RuntimeError, bug8669) { str.clear }
+  ensure
+    t.kill
+  end
+
+  def test_readpartial_unlocktmp_ensure
+    bug8669 = '[ruby-core:56121] [Bug #8669]'
+
+    str = ""
+    r, = IO.pipe
+    t = Thread.new { r.readpartial(4096, str) }
+    sleep 0.1 until t.stop?
+    t.raise
+    sleep 0.1 while t.alive?
+    assert_nothing_raised(RuntimeError, bug8669) { str.clear }
+  ensure
+    t.kill
+  end
+
+  def test_sysread_unlocktmp_ensure
+    bug8669 = '[ruby-core:56121] [Bug #8669]'
+
+    str = ""
+    r, = IO.pipe
+    t = Thread.new { r.sysread(4096, str) }
+    sleep 0.1 until t.stop?
+    t.raise
+    sleep 0.1 while t.alive?
+    assert_nothing_raised(RuntimeError, bug8669) { str.clear }
+  ensure
+    t.kill
+  end
 end

Property changes on: ruby_1_9_3
___________________________________________________________________
Modified: svn:mergeinfo
   Merged /trunk:r42212,42214


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