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4 .\" by Simon 'corecode' Schubert <corecode@fs.ei.tum.de>
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33 .\" $DragonFly: src/lib/libc/sys/lwp_create.2,v 1.2 2007/03/13 10:16:56 swildner Exp $
46 .Fn lwp_create "struct lwp_params *params"
50 function spawns a new lwp in the current process.
57 does not return twice as parent and child.
58 Instead, the new lwp will execute a function provided by the
60 argument which is a pointer to a
61 .Vt struct lwp_params .
64 void (*func)(void *); /* Function to start execution */
65 void *arg; /* Parameter to this function */
66 void *stack; /* Stack address to use */
67 lwpid_t *tid1; /* Address to copy out new tid */
68 lwpid_t *tid2; /* Same */
74 specifies the function to be executed in the new lwp.
77 to correctly terminate execution of the lwp, either by calling
83 returns, behavior is unspecified.
84 The only argument passed to
89 The new lwp starts with its stack frame set to
96 If either is invalid, behavior is
103 point to variables where the tid of the new lwp shall be stored.
104 Two parameters are provided so that storage for both parent
105 and child can be specified separately.
106 Setting any of these to NULL causes the respective tid not to be copied out.
116 function first appeared in