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Side by Side Diff: runtime/bin/fdutils_linux.cc

Issue 165723007: Move signal_blocker to platform and use it by default in TEMP_FAILURE_RETRY. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Tiny fix. Created 6 years, 9 months ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 #include "platform/globals.h" 5 #include "platform/globals.h"
6 #if defined(TARGET_OS_LINUX) 6 #if defined(TARGET_OS_LINUX)
7 7
8 #include <errno.h> // NOLINT 8 #include <errno.h> // NOLINT
9 #include <fcntl.h> // NOLINT 9 #include <fcntl.h> // NOLINT
10 #include <unistd.h> // NOLINT 10 #include <unistd.h> // NOLINT
11 #include <sys/ioctl.h> // NOLINT 11 #include <sys/ioctl.h> // NOLINT
12 12
13 #include "bin/fdutils.h" 13 #include "bin/fdutils.h"
14 #include "platform/signal_blocker.h"
14 15
15 16
16 namespace dart { 17 namespace dart {
17 namespace bin { 18 namespace bin {
18 19
19 bool FDUtils::SetCloseOnExec(intptr_t fd) { 20 bool FDUtils::SetCloseOnExec(intptr_t fd) {
20 intptr_t status; 21 intptr_t status;
21 status = TEMP_FAILURE_RETRY(fcntl(fd, F_GETFD)); 22 status = NO_RETRY_EXPECTED(fcntl(fd, F_GETFD));
22 if (status < 0) { 23 if (status < 0) {
23 return false; 24 return false;
24 } 25 }
25 status |= FD_CLOEXEC; 26 status |= FD_CLOEXEC;
26 if (TEMP_FAILURE_RETRY(fcntl(fd, F_SETFD, status)) < 0) { 27 if (NO_RETRY_EXPECTED(fcntl(fd, F_SETFD, status)) < 0) {
27 return false; 28 return false;
28 } 29 }
29 return true; 30 return true;
30 } 31 }
31 32
32 33
33 static bool SetBlockingHelper(intptr_t fd, bool blocking) { 34 static bool SetBlockingHelper(intptr_t fd, bool blocking) {
34 intptr_t status; 35 intptr_t status;
35 status = TEMP_FAILURE_RETRY(fcntl(fd, F_GETFL)); 36 status = NO_RETRY_EXPECTED(fcntl(fd, F_GETFL));
36 if (status < 0) { 37 if (status < 0) {
37 return false; 38 return false;
38 } 39 }
39 status = blocking ? (status & ~O_NONBLOCK) : (status | O_NONBLOCK); 40 status = blocking ? (status & ~O_NONBLOCK) : (status | O_NONBLOCK);
40 if (TEMP_FAILURE_RETRY(fcntl(fd, F_SETFL, status)) < 0) { 41 if (NO_RETRY_EXPECTED(fcntl(fd, F_SETFL, status)) < 0) {
41 return false; 42 return false;
42 } 43 }
43 return true; 44 return true;
44 } 45 }
45 46
46 47
47 bool FDUtils::SetNonBlocking(intptr_t fd) { 48 bool FDUtils::SetNonBlocking(intptr_t fd) {
48 return SetBlockingHelper(fd, false); 49 return SetBlockingHelper(fd, false);
49 } 50 }
50 51
51 52
52 bool FDUtils::SetBlocking(intptr_t fd) { 53 bool FDUtils::SetBlocking(intptr_t fd) {
53 return SetBlockingHelper(fd, true); 54 return SetBlockingHelper(fd, true);
54 } 55 }
55 56
56 57
57 bool FDUtils::IsBlocking(intptr_t fd, bool* is_blocking) { 58 bool FDUtils::IsBlocking(intptr_t fd, bool* is_blocking) {
58 intptr_t status; 59 intptr_t status;
59 status = TEMP_FAILURE_RETRY(fcntl(fd, F_GETFL)); 60 status = NO_RETRY_EXPECTED(fcntl(fd, F_GETFL));
60 if (status < 0) { 61 if (status < 0) {
61 return false; 62 return false;
62 } 63 }
63 *is_blocking = (status & O_NONBLOCK) == 0; 64 *is_blocking = (status & O_NONBLOCK) == 0;
64 return true; 65 return true;
65 } 66 }
66 67
67 68
68 intptr_t FDUtils::AvailableBytes(intptr_t fd) { 69 intptr_t FDUtils::AvailableBytes(intptr_t fd) {
69 int available; // ioctl for FIONREAD expects an 'int*' argument. 70 int available; // ioctl for FIONREAD expects an 'int*' argument.
70 int result = TEMP_FAILURE_RETRY(ioctl(fd, FIONREAD, &available)); 71 int result = NO_RETRY_EXPECTED(ioctl(fd, FIONREAD, &available));
71 if (result < 0) { 72 if (result < 0) {
72 return result; 73 return result;
73 } 74 }
74 #ifdef DEBUG 75 #ifdef DEBUG
75 ASSERT(available >= 0); 76 ASSERT(available >= 0);
76 #endif 77 #endif
77 return static_cast<intptr_t>(available); 78 return static_cast<intptr_t>(available);
78 } 79 }
79 80
80 81
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131 buffer_pos += bytes_written; 132 buffer_pos += bytes_written;
132 } 133 }
133 } 134 }
134 return count; 135 return count;
135 } 136 }
136 137
137 } // namespace bin 138 } // namespace bin
138 } // namespace dart 139 } // namespace dart
139 140
140 #endif // defined(TARGET_OS_LINUX) 141 #endif // defined(TARGET_OS_LINUX)
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