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16
17 import xdc.runtime.Error;
18 import xdc.runtime.knl.ISemaphore;
19 import xdc.runtime.knl.ISemProcessSupport;
20
21 /*!
22 * ======== SemProcess ========
23 * SemProcess Manager [EXPERIMENTAL]
24 *
25 * This module manages multi-process semaphores through its proxy
26 * ISemProcessSupport interface. It has a module wide config parameter
27 * {@link #Proxy} which needs to be bound to an OS specific delegate before
28 * this module can be used.
29 *
30 * Here is an example showing how the proxy is bound to an BIOS 6.x specific
31 * delegate.
32 *
33 * var SemProcess = xdc.useModule('xdc.runtime.knl.SemProcess');
34 * SemProcess.Proxy = xdc.useModule('ti.sysbios.xdcruntime.SemProcessSupport');
35 *
36 * Typically the package containing the delegates have a Settings module that
37 * will bind all {@link xdc.runtime.knl} proxies. The following
38 * example sets up all the xdc.runtime.knl proxies.
39 *
40 * xdc.useModule("ti.sysbios.xdcruntime.Settings");
41 *
42 */
43
44 @InstanceInitError
45 @InstanceFinalize
46
47 module SemProcess inherits ISemaphore
48 {
49
50 /*! Proxy that needs to be bound to an OS specific delegate. */
51 proxy Proxy inherits ISemProcessSupport;
52
53 instance:
54
55 /*!
56 * ======== create ========
57 * Create a SemProcess object
58 *
59 * This function creates a new `SemProcess` object which is initialized to
60 * count. All semaphores created with the same key reference the same
61 * underlying synchronization object and work between processes.
62 *
63 * @param(count) initial semaphore count
64 * @param(key) globally unique key for SysV-style semaphore
65 */
66 create(Int count, UInt32 key);
67
68 internal:
69
70 struct Instance_State {
71 Proxy.Handle proxyHandle;
72 }
73 }
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