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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 // This file contains types and constants/macros common to different Mojo system | 5 // This file contains types and constants/macros common to different Mojo system |
6 // APIs. | 6 // APIs. |
7 // | 7 // |
8 // Note: This header should be compilable as C. | 8 // Note: This header should be compilable as C. |
9 | 9 |
10 #ifndef MOJO_PUBLIC_C_SYSTEM_TYPES_H_ | 10 #ifndef MOJO_PUBLIC_C_SYSTEM_TYPES_H_ |
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175 // Note: This struct is not extensible (and only has 32-bit quantities), so it's | 175 // Note: This struct is not extensible (and only has 32-bit quantities), so it's |
176 // 32-bit-aligned. | 176 // 32-bit-aligned. |
177 MOJO_STATIC_ASSERT(MOJO_ALIGNOF(int32_t) == 4, "int32_t has weird alignment"); | 177 MOJO_STATIC_ASSERT(MOJO_ALIGNOF(int32_t) == 4, "int32_t has weird alignment"); |
178 struct MOJO_ALIGNAS(4) MojoHandleSignalsState { | 178 struct MOJO_ALIGNAS(4) MojoHandleSignalsState { |
179 MojoHandleSignals satisfied_signals; | 179 MojoHandleSignals satisfied_signals; |
180 MojoHandleSignals satisfiable_signals; | 180 MojoHandleSignals satisfiable_signals; |
181 }; | 181 }; |
182 MOJO_STATIC_ASSERT(sizeof(MojoHandleSignalsState) == 8, | 182 MOJO_STATIC_ASSERT(sizeof(MojoHandleSignalsState) == 8, |
183 "MojoHandleSignalsState has wrong size"); | 183 "MojoHandleSignalsState has wrong size"); |
184 | 184 |
185 // |MojoWatchNotificationFlags|: Passed to a callback invoked as a result of | 185 // |MojoWatcherNotificationFlags|: Passed to a callback invoked by a watcher |
186 // signals being raised on a handle watched by |MojoWatch()|. May take the | 186 // when some observed signals are raised or a watched handle is closed. May take |
187 // following values: | 187 // on any combination of the following values: |
188 // |MOJO_WATCH_NOTIFICATION_FLAG_FROM_SYSTEM| - The callback is being invoked | 188 // |
189 // as a result of a system-level event rather than a direct API call from | 189 // |MOJO_WATCHER_NOTIFICATION_FLAG_FROM_SYSTEM| - The callback is being |
190 // user code. This may be used as an indication that user code is safe to | 190 // invoked as a result of a system-level event rather than a direct API |
191 // call without fear of reentry. | 191 // call from user code. This may be used as an indication that user code |
| 192 // is safe to call without fear of reentry. |
192 | 193 |
193 typedef uint32_t MojoWatchNotificationFlags; | 194 typedef uint32_t MojoWatcherNotificationFlags; |
194 | 195 |
195 #ifdef __cplusplus | 196 #ifdef __cplusplus |
196 const MojoWatchNotificationFlags MOJO_WATCH_NOTIFICATION_FLAG_NONE = 0; | 197 const MojoWatcherNotificationFlags MOJO_WATCHER_NOTIFICATION_FLAG_NONE = 0; |
197 const MojoWatchNotificationFlags MOJO_WATCH_NOTIFICATION_FLAG_FROM_SYSTEM = | 198 const MojoWatcherNotificationFlags MOJO_WATCHER_NOTIFICATION_FLAG_FROM_SYSTEM = |
198 1 << 0; | 199 1 << 0; |
199 #else | 200 #else |
200 #define MOJO_WATCH_NOTIFICATION_FLAG_NONE ((MojoWatchNotificationFlags)0) | 201 #define MOJO_WATCHER_NOTIFICATION_FLAG_NONE ((MojoWatcherNotificationFlags)0) |
201 #define MOJO_WATCH_NOTIFICATION_FLAG_FROM_SYSTEM \ | 202 #define MOJO_WATCHER_NOTIFICATION_FLAG_FROM_SYSTEM \ |
202 ((MojoWatchNotificationFlags)1 << 0); | 203 ((MojoWatcherNotificationFlags)1 << 0); |
203 #endif | 204 #endif |
204 | 205 |
205 // |MojoPropertyType|: Property types that can be passed to |MojoGetProperty()| | 206 // |MojoPropertyType|: Property types that can be passed to |MojoGetProperty()| |
206 // to retrieve system properties. May take the following values: | 207 // to retrieve system properties. May take the following values: |
207 // |MOJO_PROPERTY_TYPE_SYNC_CALL_ALLOWED| - Whether making synchronous calls | 208 // |MOJO_PROPERTY_TYPE_SYNC_CALL_ALLOWED| - Whether making synchronous calls |
208 // (i.e., blocking to wait for a response to an outbound message) is | 209 // (i.e., blocking to wait for a response to an outbound message) is |
209 // allowed. The property value is of boolean type. If the value is true, | 210 // allowed. The property value is of boolean type. If the value is true, |
210 // users should refrain from making sync calls. | 211 // users should refrain from making sync calls. |
211 typedef uint32_t MojoPropertyType; | 212 typedef uint32_t MojoPropertyType; |
212 | 213 |
213 #ifdef __cplusplus | 214 #ifdef __cplusplus |
214 const MojoPropertyType MOJO_PROPERTY_TYPE_SYNC_CALL_ALLOWED = 0; | 215 const MojoPropertyType MOJO_PROPERTY_TYPE_SYNC_CALL_ALLOWED = 0; |
215 #else | 216 #else |
216 #define MOJO_PROPERTY_TYPE_SYNC_CALL_ALLOWED ((MojoPropertyType)0) | 217 #define MOJO_PROPERTY_TYPE_SYNC_CALL_ALLOWED ((MojoPropertyType)0) |
217 #endif | 218 #endif |
218 | 219 |
219 #endif // MOJO_PUBLIC_C_SYSTEM_TYPES_H_ | 220 #endif // MOJO_PUBLIC_C_SYSTEM_TYPES_H_ |
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