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| author | Kaz Kylheku <kaz@kylheku.com> | 2017-05-20 21:38:50 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2017-05-20 21:38:50 -0700 |
| commit | 3fbc79ce6f249c527f63763c02ea384e51180f99 (patch) | |
| tree | 18d4c5a41b6c58cdb879f32ecb47de6dc469af40 | |
| parent | 5fc47b3d24f1fa568ffb54db8e8054f190e2fb2b (diff) | |
| download | txr-3fbc79ce6f249c527f63763c02ea384e51180f99.tar.gz txr-3fbc79ce6f249c527f63763c02ea384e51180f99.tar.bz2 txr-3fbc79ce6f249c527f63763c02ea384e51180f99.zip | |
ffi: add two tests based on realpath.
The realpath function is called using FFI. One approach
passes a null pointer, so that the function dynamically
allocates. The return value is str-d, causing FFI to take
ownership of the pointer, freeing it. The other approach
is to pass a pointer to a large null-terminated character
array, marked for ownership transfer to the function. FFI
allocates it and puts the argument into it, which is just
a dummy empty string. The function fills that buffer and
returns it. The return is captured as a str-d, so FFI takes
ownership back, and frees the buffer.
* tests/017/realpath.tl: New function.
* tests/017/realpath.expected: Likewise.
| -rw-r--r-- | tests/017/realpath.expected | 2 | ||||
| -rw-r--r-- | tests/017/realpath.tl | 12 |
2 files changed, 14 insertions, 0 deletions
diff --git a/tests/017/realpath.expected b/tests/017/realpath.expected new file mode 100644 index 00000000..659aa110 --- /dev/null +++ b/tests/017/realpath.expected @@ -0,0 +1,2 @@ +"/usr/bin" +"/usr/bin" diff --git a/tests/017/realpath.tl b/tests/017/realpath.tl new file mode 100644 index 00000000..d920825f --- /dev/null +++ b/tests/017/realpath.tl @@ -0,0 +1,12 @@ +(load "../common") + +(with-dyn-lib (libc) + (deffi realpath-null "realpath" str-d (str str)) + (deffi realpath-buf "realpath" str-d (str (ptr-in-d (zarray 8192 char))))) + +(when (memq (os-symbol) '(:cygwin :solaris)) + (put-string (file-get-string "tests/017/realpath.expected")) + (exit 0)) + +(prinl (realpath-null "/usr/bin" nil)) +(prinl (realpath-buf "/usr/bin" (copy ""))) |