en:ibm:prcp:mou:synch

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en:ibm:prcp:mou:synch [2016/02/04 07:42]
valerius
en:ibm:prcp:mou:synch [2016/09/15 04:53] (current)
valerius
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 ==== MouSynch ==== ==== MouSynch ====
  
-**Bindings**:​ C, MASM +**Bindings**: ​[[synch#bindings|C]][[synch#​MASM bindings|MASM]]
  
 This call provides synchronous access for a mouse subsystem to the mouse device driver. ​ This call provides synchronous access for a mouse subsystem to the mouse device driver. ​
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 [[en:​ibm:​prcp:​mou:​synch|MouSynch]] blocks all other threads within a session until the semaphore clears (returns from the subsystem to the router). To ensure proper synchronization,​ MouSynch should be issued by a mouse subsystem if it intends to access dynamically modifiable shared data for each session or if it intends to issue a [[en:​ibm:​prcp:​cpi:​dosdevioctl|DosDevIOCtl]]. [[en:​ibm:​prcp:​mou:​synch|MouSynch]] does not protect globally shared data from threads in other sessions. ​ [[en:​ibm:​prcp:​mou:​synch|MouSynch]] blocks all other threads within a session until the semaphore clears (returns from the subsystem to the router). To ensure proper synchronization,​ MouSynch should be issued by a mouse subsystem if it intends to access dynamically modifiable shared data for each session or if it intends to issue a [[en:​ibm:​prcp:​cpi:​dosdevioctl|DosDevIOCtl]]. [[en:​ibm:​prcp:​mou:​synch|MouSynch]] does not protect globally shared data from threads in other sessions. ​
 +
 +=== C bindings ===
 +
 +<code c>
 +#define INCL_MOU
 +
 +USHORT ​ rc = MouSynch(IOWait);​
 +
 +USHORT ​          ​IOWait; ​       /* Indicate wait/no wait */
 +
 +USHORT ​          ​rc; ​           /* return code */
 +</​code>​
 +
 +=== MASM bindings ===
 +
 +<code asm>
 +EXTRN  MouSynch:​FAR
 +INCL_MOU ​           EQU 1
 +
 +PUSH   ​WORD ​   IOWait ​       ;Indicate wait/no wait
 +CALL   ​MouSynch
 +
 +Returns WORD
 +</​code>​
  

en/ibm/prcp/mou/synch.txt · Last modified: 2016/09/15 04:53 by valerius