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check if message port is still valid and renew if not

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This commit is contained in:
matthias.ringwald 2011-02-02 20:18:23 +00:00
parent 7ec5eeaa74
commit 89007ccea2
1 changed files with 8 additions and 1 deletions
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9
SpringBoardAccess/SpringBoardAccess.c
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@ -43,10 +43,17 @@
static CFMessagePortRef springBoardAccessMessagePort = 0;
static int SBA_sendMessage(UInt8 cmd, UInt16 dataLen, UInt8 *data, CFDataRef *resultData){
// check for port
// still valid
if (springBoardAccessMessagePort && !CFMessagePortIsValid(springBoardAccessMessagePort)){
CFRelease(springBoardAccessMessagePort);
springBoardAccessMessagePort = NULL;
}
// create new one
if (!springBoardAccessMessagePort) {
springBoardAccessMessagePort = CFMessagePortCreateRemote(NULL, CFSTR(SBA_MessagePortName));
}
// well, won't work
if (!springBoardAccessMessagePort) {
return kCFMessagePortIsInvalid;
}