linux系统课程-课件09day09线程同步

分区分区linux-day09-PAGE3 constpthread_rwlockattr_t*restrictattr);pthread_rwlock_trwlock=intintintint分区分区linux-day09-线程同步的第PAGE6 pthread_mutex_t*restrictmutex,structtimespec}

time_t /*seconds*/longtv_nsec;/*nanosecondes*tv_sectime(NULL)+600==>设置超时pthread_mutex_t*restrict先释放锁constpthread_condattr_t*restrictattr);分区分区linux-day09-8 创建线程回收线程线程退出pthread_exit杀死线程pthread_cancel线程分离pthread_detach,也可以通过属性设置pthread_attr_setdetachstate设置属性分离，之前需要查看线程IDpthread_self在进程内唯一 intsem_init(sem_t*sem,intpshared,unsignedint0非0valueintsem_destroy(sem_t*sem);intsem_wait(sem_t*sem);释放信号量value++intsem_post(sem_t分区linux-day09-9 分区linux-day09-10分区分区linux-day09-PAGE11 #defineEPERM 1/*Operationnotpermitted*/#defineENOENT 2/*Nosuchfileordirectory*/#defineESRCH 3/*Nosuchprocess*/#defineEINTR /*Interruptedsystemcall*/#defineEIO /*I/Oerror*/#defineENXIO /*Nosuchdeviceoraddress*/#defineE2BIG /*Argumentlisttoolong*/#defineENOEXEC /*Execformaterror*/#defineEBADF /*Badfilenumber*/#defineECHILD /*Nochildprocesses*/#defineEAGAIN /*Tryagain*/#defineENOMEM12/*Outofmemory*/#defineEACCES13/*Permissiondenied*/#defineEFAULT14/*Badaddress*/#defineENOTBLK15/*Blockdevicerequired*/#defineEBUSY 16/*Deviceorresourcebusy*/#defineEEXIST17/*Fileexists*/#defineEXDEV /*Cross-devicelink*/#defineENODEV /*Nosuchdevice*/#defineENOTDIR /*Notadirectory*/#defineEISDIR /*Isadirectory*/#defineEINVAL 22 /*Invalidargument*/#defineENFILE /*Filetableoverflow*/#defineEMFILE 24 /*Toomanyopenfiles*/#defineENOTTY /*Notatypewriter*/#defineETXTBSY /*Textfilebusy*/#defineEFBIG /*Filetoolarge*/#defineENOSPC /*Nospaceleftondevice*/#defineESPIPE /*Illegalseek*/#defineEROFS /*Read-onlyfilesystem*/#defineEMLINK /*Toomanylinks*/#define /*Brokenpipe#define /*Mathargumentoutofof#define /*Mathresultnotrepresentable#defineEDEADLK /*Resourcedeadlockwouldoccur*/#defineENALONG /*Filenametoolong*/#defineENOLCK /*Norecordlocksavailable*/#defineENOSYS /*Invalidsystemcallnumber*/#defineENOTEMPTY /*Directorynotempty*/#define /*Toomanysymboliclinks#defineEWOULDBLOCK EAGAIN/*Operationwouldblock*/#defineENOMSG /*Nomessageofdesiredtype*/#defineEIDRM /*Identifierremoved*/#defineECHRNG /*Channelnumberoutofrange*/#defineEL2NSYNC /*Level2notsynchronized*/#defineEL3HLT /*Level3halted*/#define /*Level3reset#defineELNRNG /*Linknumberoutofrange*/#defineEUNATCH /*Protocoldrivernotattached*/#defineENOCSI /*NoCSIstructureavailable*/#defineEL2HLT /*Level2halted*/#define /*Invalidexchange#defineEBADR 53 /*Invalidrequestdescriptor*/#defineEXFULL /*Exchangefull*/#define /*Noanode#defineEBADRQC /*Invalidrequestcode*/#defineEBADSLT /*Invalidslot*/#define #defineEBFONT /*Badfontfileformat*/#defineENOSTR /*Devicenotastream*/#defineENODATA /*Nodataavailable*/#defineETIME /*Timerexpired*/#define /*Outofstreamsresources#defineENONET /*Machineisnotonthenetwork*/#defineENOPKG 65 /*Packagenotinstalled*/#defineEREMOTE /*Objectisremote*/#defineENOLINK /*Linkhasbeensevered*/#defineEADV /*Advertiseerror*/#define /*Srmounterror#defineECOMM /*Communicationerroronsend*/#defineEPROTO /*Protocolerror*/#defineEMULTIHOP /*Multihopattempted*/#defineEDOTDOT /*RFSspecificerror*/#defineEBADMSG /*Notadatamessage*/#defineEOVERFLOW /*Valuetoolargefordefineddatatype*/#defineENOTUNIQ /*Namenotuniqueonnetwork*/#defineEBADFD /*Filedescriptorinbadstate*/#defineEREMCHG /*Remoteaddresschanged*/#define /*Cannotaccessaneededshared#defineELIBBAD /*Accessingacorruptedsharedlibrary*/ /*.libsectionina.outcorrupted*/#defineELIBMAX /*Attemptingtolinkintoomanysharedlibraries*/#define /*Cannotexecasharedlibrary#define /*Illegalbytesequence#defineERESTART /*Interruptedsystemcallshouldberestarted*/#defineESTRPIPE /*Streamspipeerror*/#defineEUSERS /*Toomanyusers*/#defineENOTSOCK88/*Socketoperationonnon-socket*/#defineEDESTADDRREQ89/*Destinationaddressrequired*/#defineEMSGSIZE90/*Messagetoolong*/#defineEPROTOTYPE /*Protocolwrongtypeforsocket*/#defineENOPROTOOPT /*Protocolnotavailable*/#defineEPROTONOSUPPORT93 /*Protocolnotsupported*/#defineESOCKTNOSUPPORT94 /*Sockettypenotsupported*/#defineEOPNOTSUPP /*Operationnotsupportedontransportendpoint*/#define /*Protocolfamilynotsupported#defineEAFNOSUPPORT /*Addressfamilynotsupportedbyprotocol*/#define /*Addressalreadyinuse#define /*Cannotassignrequested#define /*Networkisdown#defineENETUNREACH101/*Networkisunreachable*/#defineENETRESET102/*Networkdroppedconnectionbecauseofreset*/#defineECONNABORTED103/*Softwarecausedconnectionabort*/#define/*Connectionresetbypeer#define/*Nobufferspaceavailable#define/*Transportendpointisconnected#defineENOTCONN /*Transportendpointisnotconnected*/#defineESHUTDOWN /*Cannotsendaftertransportendpointshutdown*/#defineETOOMANYREFS /*Toomanyreferences:cannotsplice*/#defineETIMEDOUT /*Connectiontimedout*/#defineECONNREFUSED /*Connectionrefused*/#defineEHOSTDOWN /*Hostisdown*/#defineEHOSTUNREACH /*Noroutetohost*/#defineEALREADY /*Operationalreadyinprogress*/#defineEINPROGRESS /*Oper