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NM and CM callable. Suspends a process. Process handling (PH) capability is required. Syntax | |
U16V I16V
SUSPEND(allow,rin);
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Parameters | |
- allow
16-bit unsigned integer by value (required) Passes the anticipated source of the call and, later, reactivates
the process, as indicated by bits (14:1) and (15:1):
| Bits | Value/Meaning |
|---|
| 15:1 | Parent activation bit: - 0
Process does not expect to be activated by its parent - 1
Process expects to be activated by its parent
| | 14:1 | Child activation bit: - 0
Process does not expect to be activated by one of its children - 1
Process expects to be activated by one of its children
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| | | |  | NOTE:
If the process is running with only process handling (PH) capability,
at least one of these bits must = 1. | | | | |
If (14:1)=1 and (15:1)=1, either the parent or a child can
activate the suspended process. Bits (0:14) are reserved for the operating system.
- rin
16-bit signed integer by value (optional) Passes the resource identification number (RIN).
If rin is specified, it represents a local RIN that is locked by
the process but is released when this process is suspended.
This facility can be used to synchronize processes within the same job.
Operation Notes | |
When SUSPEND is executed, the calling process relinquishes its
access to the CPU until reactivated by an ACTIVATE intrinsic call.
The calling process must specify the anticipated source of
the ACTIVATE call (its parent or a child process). When the
process is reactivated, it begins execution with the instruction
immediately following the SUSPEND call. Condition Codes | |
- CCE (2)
Request granted. - CCG (0)
Not returned. - CCL (1)
Request denied. The allow parameter is not valid, the
specified RIN is not owned by this process, or the specified RIN was
not locked.
Related Information | |
- Intrinsics
None - Commands
None - Manuals
Process Management Programmer's Guide (32650-90023)
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