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setustack (2)
  • >> setustack (2) ( Solaris man: Системные вызовы )
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    NAME

    getustack, setustack - retrieve or change the address of per-LWP stack boundary information
     
    

    SYNOPSIS

    #include <ucontext.h>
    
    int getustack(stack_t **spp);
    

    int setustack(stack_t *sp);
    

     

    DESCRIPTION

    The getustack() function retrieves the address of per-LWP stack boundary information. The address is stored at the location pointed to by spp. If this address has not been defined using a previous call to setustack(), NULL is stored at the location pointed to by spp.

    The setustack() function changes the address of the current thread's stack boundary information to the value of sp.  

    RETURN VALUES

    Upon successful completion, these functions return 0. Otherwise, -1 is returned and errno is set to indicate the error.  

    ERRORS

    These functions will fail if:

    EFAULT

    The spp or sp argument does not refer to a valid address.

     

    USAGE

    Only implementors of custom threading libraries should use these functions to get and set the address of the stack bound to an internal per-thread data structure. Other users should use stack_getbounds(3C) and stack_setbounds(3C).  

    ATTRIBUTES

    See attributes(5) for descriptions of the following attributes:

    ATTRIBUTE TYPEATTRIBUTE VALUE

    Interface StabilityEvolving

    MT-Level

     

    SEE ALSO

    _stack_grow(3C), stack_getbounds(3C), stack_inbounds(3C), stack_setbounds(3C), stack_violation(3C), attributes(5)


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUES
    ERRORS
    USAGE
    ATTRIBUTES
    SEE ALSO


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