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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "content/browser/geolocation/libgps_wrapper_linux.h" | 5 #include "content/browser/geolocation/libgps_wrapper_linux.h" |
| 6 | 6 |
| 7 #include <math.h> | 7 #include <math.h> |
| 8 #include <dlfcn.h> | 8 #include <dlfcn.h> |
| 9 #include <errno.h> | 9 #include <errno.h> |
| 10 | 10 |
| 11 #include "base/logging.h" | 11 #include "base/logging.h" |
| 12 #include "base/stringprintf.h" | 12 #include "base/stringprintf.h" |
| 13 #include "content/common/geoposition.h" | 13 #include "content/public/common/geoposition.h" |
| 14 #include "third_party/gpsd/release-3.1/gps.h" | 14 #include "third_party/gpsd/release-3.1/gps.h" |
| 15 | 15 |
| 16 COMPILE_ASSERT(GPSD_API_MAJOR_VERSION == 5, GPSD_API_version_is_not_5); | 16 COMPILE_ASSERT(GPSD_API_MAJOR_VERSION == 5, GPSD_API_version_is_not_5); |
| 17 | 17 |
| 18 namespace { | 18 namespace { |
| 19 const char kLibGpsName[] = "libgps.so.20"; | 19 const char kLibGpsName[] = "libgps.so.20"; |
| 20 } // namespace | 20 } // namespace |
| 21 | 21 |
| 22 LibGps::LibGps(void* dl_handle, | 22 LibGps::LibGps(void* dl_handle, |
| 23 gps_open_fn gps_open, | 23 gps_open_fn gps_open, |
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| 89 | 89 |
| 90 is_open_ = true; | 90 is_open_ = true; |
| 91 return true; | 91 return true; |
| 92 } | 92 } |
| 93 void LibGps::Stop() { | 93 void LibGps::Stop() { |
| 94 if (is_open_) | 94 if (is_open_) |
| 95 gps_close_(gps_data_.get()); | 95 gps_close_(gps_data_.get()); |
| 96 is_open_ = false; | 96 is_open_ = false; |
| 97 } | 97 } |
| 98 | 98 |
| 99 bool LibGps::Read(Geoposition* position) { | 99 bool LibGps::Read(content::Geoposition* position) { |
| 100 DCHECK(position); | 100 DCHECK(position); |
| 101 position->error_code = Geoposition::ERROR_CODE_POSITION_UNAVAILABLE; | 101 position->error_code = content::Geoposition::ERROR_CODE_POSITION_UNAVAILABLE; |
| 102 if (!is_open_) { | 102 if (!is_open_) { |
| 103 DLOG(WARNING) << "No gpsd connection"; | 103 DLOG(WARNING) << "No gpsd connection"; |
| 104 position->error_message = "No gpsd connection"; | 104 position->error_message = "No gpsd connection"; |
| 105 return false; | 105 return false; |
| 106 } | 106 } |
| 107 | 107 |
| 108 if (gps_read_(gps_data_.get()) < 0) { | 108 if (gps_read_(gps_data_.get()) < 0) { |
| 109 DLOG(WARNING) << "gps_read() fails"; | 109 DLOG(WARNING) << "gps_read() fails"; |
| 110 position->error_message = "gps_read() fails"; | 110 position->error_message = "gps_read() fails"; |
| 111 return false; | 111 return false; |
| 112 } | 112 } |
| 113 | 113 |
| 114 if (!GetPositionIfFixed(position)) { | 114 if (!GetPositionIfFixed(position)) { |
| 115 DLOG(WARNING) << "No fixed position"; | 115 DLOG(WARNING) << "No fixed position"; |
| 116 position->error_message = "No fixed position"; | 116 position->error_message = "No fixed position"; |
| 117 return false; | 117 return false; |
| 118 } | 118 } |
| 119 | 119 |
| 120 position->error_code = Geoposition::ERROR_CODE_NONE; | 120 position->error_code = content::Geoposition::ERROR_CODE_NONE; |
| 121 position->timestamp = base::Time::Now(); | 121 position->timestamp = base::Time::Now(); |
| 122 if (!position->IsValidFix()) { | 122 if (!position->Validate()) { |
| 123 // GetPositionIfFixed returned true, yet we've not got a valid fix. | 123 // GetPositionIfFixed returned true, yet we've not got a valid fix. |
| 124 // This shouldn't happen; something went wrong in the conversion. | 124 // This shouldn't happen; something went wrong in the conversion. |
| 125 NOTREACHED() << "Invalid position from GetPositionIfFixed: lat,long " | 125 NOTREACHED() << "Invalid position from GetPositionIfFixed: lat,long " |
| 126 << position->latitude << "," << position->longitude | 126 << position->latitude << "," << position->longitude |
| 127 << " accuracy " << position->accuracy << " time " | 127 << " accuracy " << position->accuracy << " time " |
| 128 << position->timestamp.ToDoubleT(); | 128 << position->timestamp.ToDoubleT(); |
| 129 position->error_code = Geoposition::ERROR_CODE_POSITION_UNAVAILABLE; | 129 position->error_code = |
| 130 content::Geoposition::ERROR_CODE_POSITION_UNAVAILABLE; |
| 130 position->error_message = "Bad fix from gps"; | 131 position->error_message = "Bad fix from gps"; |
| 131 return false; | 132 return false; |
| 132 } | 133 } |
| 133 return true; | 134 return true; |
| 134 } | 135 } |
| 135 | 136 |
| 136 bool LibGps::GetPositionIfFixed(Geoposition* position) { | 137 bool LibGps::GetPositionIfFixed(content::Geoposition* position) { |
| 137 DCHECK(position); | 138 DCHECK(position); |
| 138 if (gps_data_->status == STATUS_NO_FIX) { | 139 if (gps_data_->status == STATUS_NO_FIX) { |
| 139 DVLOG(2) << "Status_NO_FIX"; | 140 DVLOG(2) << "Status_NO_FIX"; |
| 140 return false; | 141 return false; |
| 141 } | 142 } |
| 142 | 143 |
| 143 if (isnan(gps_data_->fix.latitude) || isnan(gps_data_->fix.longitude)) { | 144 if (isnan(gps_data_->fix.latitude) || isnan(gps_data_->fix.longitude)) { |
| 144 DVLOG(2) << "No valid lat/lon value"; | 145 DVLOG(2) << "No valid lat/lon value"; |
| 145 return false; | 146 return false; |
| 146 } | 147 } |
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| 165 if (!isnan(gps_data_->fix.epv)) | 166 if (!isnan(gps_data_->fix.epv)) |
| 166 position->altitude_accuracy = gps_data_->fix.epv; | 167 position->altitude_accuracy = gps_data_->fix.epv; |
| 167 } | 168 } |
| 168 | 169 |
| 169 if (!isnan(gps_data_->fix.track)) | 170 if (!isnan(gps_data_->fix.track)) |
| 170 position->heading = gps_data_->fix.track; | 171 position->heading = gps_data_->fix.track; |
| 171 if (!isnan(gps_data_->fix.speed)) | 172 if (!isnan(gps_data_->fix.speed)) |
| 172 position->speed = gps_data_->fix.speed; | 173 position->speed = gps_data_->fix.speed; |
| 173 return true; | 174 return true; |
| 174 } | 175 } |
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