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Diffstat (limited to 'Documentation/technical/api-run-command.txt')
| -rw-r--r-- | Documentation/technical/api-run-command.txt | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/technical/api-run-command.txt b/Documentation/technical/api-run-command.txt index 44876fa703..f18b4f4817 100644 --- a/Documentation/technical/api-run-command.txt +++ b/Documentation/technical/api-run-command.txt @@ -231,8 +231,9 @@ The function pointer in .proc has the following signature: There are serious restrictions on what the asynchronous function can do -because this facility is implemented by a pipe to a forked process on -UNIX, but by a thread in the same address space on Windows: +because this facility is implemented by a thread in the same address +space on most platforms (when pthreads is available), but by a pipe to +a forked process otherwise: . It cannot change the program's state (global variables, environment, etc.) in a way that the caller notices; in other words, .in and .out |