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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_ANDROID) | 6 #if defined(TARGET_OS_ANDROID) |
| 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 | 14 |
| 15 #include "platform/signal_blocker.h" |
| 16 |
| 15 | 17 |
| 16 namespace dart { | 18 namespace dart { |
| 17 namespace bin { | 19 namespace bin { |
| 18 | 20 |
| 19 bool FDUtils::SetCloseOnExec(intptr_t fd) { | 21 bool FDUtils::SetCloseOnExec(intptr_t fd) { |
| 20 intptr_t status; | 22 intptr_t status; |
| 21 status = TEMP_FAILURE_RETRY(fcntl(fd, F_GETFD)); | 23 status = NO_RETRY_EXPECTED(fcntl(fd, F_GETFD)); |
| 22 if (status < 0) { | 24 if (status < 0) { |
| 23 return false; | 25 return false; |
| 24 } | 26 } |
| 25 status |= FD_CLOEXEC; | 27 status |= FD_CLOEXEC; |
| 26 if (TEMP_FAILURE_RETRY(fcntl(fd, F_SETFD, status)) < 0) { | 28 if (NO_RETRY_EXPECTED(fcntl(fd, F_SETFD, status)) < 0) { |
| 27 return false; | 29 return false; |
| 28 } | 30 } |
| 29 return true; | 31 return true; |
| 30 } | 32 } |
| 31 | 33 |
| 32 | 34 |
| 33 static bool SetBlockingHelper(intptr_t fd, bool blocking) { | 35 static bool SetBlockingHelper(intptr_t fd, bool blocking) { |
| 34 intptr_t status; | 36 intptr_t status; |
| 35 status = TEMP_FAILURE_RETRY(fcntl(fd, F_GETFL)); | 37 status = NO_RETRY_EXPECTED(fcntl(fd, F_GETFL)); |
| 36 if (status < 0) { | 38 if (status < 0) { |
| 37 return false; | 39 return false; |
| 38 } | 40 } |
| 39 status = blocking ? (status & ~O_NONBLOCK) : (status | O_NONBLOCK); | 41 status = blocking ? (status & ~O_NONBLOCK) : (status | O_NONBLOCK); |
| 40 if (TEMP_FAILURE_RETRY(fcntl(fd, F_SETFL, status)) < 0) { | 42 if (NO_RETRY_EXPECTED(fcntl(fd, F_SETFL, status)) < 0) { |
| 41 return false; | 43 return false; |
| 42 } | 44 } |
| 43 return true; | 45 return true; |
| 44 } | 46 } |
| 45 | 47 |
| 46 | 48 |
| 47 bool FDUtils::SetNonBlocking(intptr_t fd) { | 49 bool FDUtils::SetNonBlocking(intptr_t fd) { |
| 48 return SetBlockingHelper(fd, false); | 50 return SetBlockingHelper(fd, false); |
| 49 } | 51 } |
| 50 | 52 |
| 51 | 53 |
| 52 bool FDUtils::SetBlocking(intptr_t fd) { | 54 bool FDUtils::SetBlocking(intptr_t fd) { |
| 53 return SetBlockingHelper(fd, true); | 55 return SetBlockingHelper(fd, true); |
| 54 } | 56 } |
| 55 | 57 |
| 56 | 58 |
| 57 bool FDUtils::IsBlocking(intptr_t fd, bool* is_blocking) { | 59 bool FDUtils::IsBlocking(intptr_t fd, bool* is_blocking) { |
| 58 intptr_t status; | 60 intptr_t status; |
| 59 status = TEMP_FAILURE_RETRY(fcntl(fd, F_GETFL)); | 61 status = NO_RETRY_EXPECTED(fcntl(fd, F_GETFL)); |
| 60 if (status < 0) { | 62 if (status < 0) { |
| 61 return false; | 63 return false; |
| 62 } | 64 } |
| 63 *is_blocking = (status & O_NONBLOCK) == 0; | 65 *is_blocking = (status & O_NONBLOCK) == 0; |
| 64 return true; | 66 return true; |
| 65 } | 67 } |
| 66 | 68 |
| 67 | 69 |
| 68 intptr_t FDUtils::AvailableBytes(intptr_t fd) { | 70 intptr_t FDUtils::AvailableBytes(intptr_t fd) { |
| 69 int available; // ioctl for FIONREAD expects an 'int*' argument. | 71 int available; // ioctl for FIONREAD expects an 'int*' argument. |
| 70 int result = TEMP_FAILURE_RETRY(ioctl(fd, FIONREAD, &available)); | 72 int result = NO_RETRY_EXPECTED(ioctl(fd, FIONREAD, &available)); |
| 71 if (result < 0) { | 73 if (result < 0) { |
| 72 return result; | 74 return result; |
| 73 } | 75 } |
| 74 #ifdef DEBUG | 76 #ifdef DEBUG |
| 75 ASSERT(available >= 0); | 77 ASSERT(available >= 0); |
| 76 #endif | 78 #endif |
| 77 return static_cast<intptr_t>(available); | 79 return static_cast<intptr_t>(available); |
| 78 } | 80 } |
| 79 | 81 |
| 80 | 82 |
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| 131 buffer_pos += bytes_written; | 133 buffer_pos += bytes_written; |
| 132 } | 134 } |
| 133 } | 135 } |
| 134 return count; | 136 return count; |
| 135 } | 137 } |
| 136 | 138 |
| 137 } // namespace bin | 139 } // namespace bin |
| 138 } // namespace dart | 140 } // namespace dart |
| 139 | 141 |
| 140 #endif // defined(TARGET_OS_ANDROID) | 142 #endif // defined(TARGET_OS_ANDROID) |
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