Open System Services System Calls Reference Manual (G06.25+, H06.03+)

System Functions (t) tdm_execvep(2)
• File size limit (see the ulimit(2) reference page)
Upon successful completion, the tdm_execvep() function marks the st_atime field of the file for
update.
The POSIX.1 standard does not specify the effect on the st_atime field when the tdm_execvep()
function call fails but does find the file. Neither does the HP implementation guarantee the out-
come. Under these circumstances, this field should not be used for further processing.
Default Guardian Attributes
If the pe_parms parameter contains a null pointer, the newly created OSS process retains all
these default Guardian attributes of the process that calls the tdm_execvep() function:
• Priority
• Processor on which the process executes
• Home terminal
• Job ID
• DEFINE mode switch
• Process access ID (PAID), unless the S_ISUID mode bit of the new process image file is
set
• Security group list
• Job ancestor or GMOM
• Unread system message index (PCBMCNT)
This attribute assignment is different from the assignment made when creating a new
process with Guardian procedures.
• Outstanding incoming and outgoing message limits
This attribute assignment is different from the assignment made when creating a new
process with Guardian procedures.
• Login, remote login, and saveabend flags
• File creation mask
If the pe_parms parameter contains a null pointer, the default Guardian attributes of the new pro-
cess that differ from those of the calling process are:
• No segments created or shared using Guardian system procedures such as
SEGMENT_ALLOCATE_ are inherited.
• The program file is the file specified in the tdm_execvep() call.
• The library file is specified in the program file.
• The child process does not inherit the parent process extended swap file (if any). For a
G-series TNS process or an accelerated process, the extended data segment is managed
by the Kernel Managed Storage Facility (KMSF) unless an extended swap file is
specified in the pe_extswap_file_name field of the process_extension structure
described elsewhere in this reference page.
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