Task Management

A number of function names have changed in the task management area. These changes are primarily due to the simplified 32-bit programming environment.

Table "Task Management Functions"

The following comments apply to the functions described in Table "Task Management Functions":

  • The DosCreateThread() function is enhanced in Version 2.0 to allow dynamic stack growth, operating system management of stacks for secondary threads, and the ability to create a suspended thread.

  • The InfoSeg architecture of 16-bit OS/2 versions is redefined for the flat memory model. The equivalent per thread and per process data is obtained under Version 2.0 using the DosGetInfoBlocks() function, whereas the non-changing values can be obtained using the DosQuerySysInfo() function.

  • The DosGetPrty(), DosGetPID(), and DosGetPPID() functions are not implemented since this information is available through the DosGetInfoBlocks() function.

  • DosPTrace() support is provided under OS/2 Version 2.0 for 16-bit debugging tools such as CodeView. For 32-bit debugging tools, the DosPTrace() function is replaced by the DosDebug() function.

  • DosWaitThread() is a new function allowing a thread to suspend itself, waiting for other threads within a process to terminate.

  • DosKillThread() is a new function allowing a thread to forcibly terminate another thread within the current process.

  • The DosR2StackRealloc(), DosCallBack(), and DosRetForward() functions are not applicable in the 32-bit flat memory model environment.

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