diff options
Diffstat (limited to 'process.c')
| -rw-r--r-- | process.c | 16 |
1 files changed, 14 insertions, 2 deletions
@@ -1233,9 +1233,20 @@ rb_f_exec(argc, argv) /* * call-seq: + * Kernel.fork [{ block }] => fixnum or nil * Process.fork [{ block }] => fixnum or nil - * - * See <code>Kernel::fork</code>. + * + * Creates a subprocess. If a block is specified, that block is run + * in the subprocess, and the subprocess terminates with a status of + * zero. Otherwise, the +fork+ call returns twice, once in + * the parent, returning the process ID of the child, and once in + * the child, returning _nil_. The child process can exit using + * <code>Kernel.exit!</code> to avoid running any + * <code>at_exit</code> functions. The parent process should + * use <code>Process.wait</code> to collect the termination statuses + * of its children or use <code>Process.detach</code> to register + * disinterest in their status; otherwise, the operating system + * may accumulate zombie processes. */ static VALUE @@ -1416,6 +1427,7 @@ rb_f_system(argc, argv) if (RARRAY(argv[0])->len != 2) { rb_raise(rb_eArgError, "wrong first argument"); } + * Kernel.fork [{ block }] => fixnum or nil prog = RARRAY(argv[0])->ptr[0]; argv[0] = RARRAY(argv[0])->ptr[1]; } |