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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
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 * @p(code)
34 * var SemProcess = xdc.useModule('xdc.runtime.knl.SemProcess');
35 * SemProcess.Proxy = xdc.useModule('ti.sysbios.xdcruntime.SemProcessSupport');
36 * @p
37 *
38 * Typically the package containing the delegates have a Settings module that
39 * will bind all {@link xdc.runtime.knl} proxies. The following
40 * example sets up all the xdc.runtime.knl proxies.
41 *
42 * @p(code)
43 * xdc.useModule("ti.sysbios.xdcruntime.Settings");
44 * @p
45 */
46
47 @InstanceInitError
48 @InstanceFinalize
49
50 module SemProcess inherits ISemaphore
51 {
52
53 /*! Proxy that needs to be bound to an OS specific delegate. */
54 proxy Proxy inherits ISemProcessSupport;
55
56 instance:
57
58 /*!
59 * ======== create ========
60 * Create a SemProcess object
61 *
62 * This function creates a new `SemProcess` object which is initialized to
63 * count. All semaphores created with the same key reference the same
64 * underlying synchronization object and work between processes.
65 *
66 * @param(count) initial semaphore count
67 * @param(key) globally unique key for SysV-style semaphore
68 */
69 create(Int count, UInt32 key);
70
71 internal:
72
73 struct Instance_State {
74 Proxy.Handle proxyHandle;
75 }
76 }
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80