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Removed obsolete comments about confused string refcount tricks (Jeremy

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removed the tricks).

Changed the ENTER/LEAVE_ZLIB macros so as not to create a new block (a
new block is neither necessary nor helpful).
This commit is contained in:
Tim Peters 2001-10-17 03:43:54 +00:00
parent 2a2d970ef9
commit 6605c64c83
1 changed files with 4 additions and 9 deletions
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13
Modules/zlibmodule.c
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@ -23,11 +23,6 @@
time-consuming functions where we need to worry about holding up time-consuming functions where we need to worry about holding up
other Python threads. other Python threads.
We don't need to worry about the string inputs being modified out
from underneath us, because string objects are immutable. However,
we do need to make sure we take on ownership, so that the strings
are not deleted out from under us during a thread swap.
N.B. N.B.
Since ENTER_ZLIB and LEAVE_ZLIB only need to be called on functions Since ENTER_ZLIB and LEAVE_ZLIB only need to be called on functions
@ -36,17 +31,17 @@
there was an de/compress object-specific lock. However, for the there was an de/compress object-specific lock. However, for the
moment the ENTER_ZLIB and LEAVE_ZLIB calls are global for ALL moment the ENTER_ZLIB and LEAVE_ZLIB calls are global for ALL
de/compress objects. de/compress objects.
*/ */
static PyThread_type_lock zlib_lock = NULL; /* initialized on module load */ static PyThread_type_lock zlib_lock = NULL; /* initialized on module load */
#define ENTER_ZLIB \ #define ENTER_ZLIB \
{ Py_BEGIN_ALLOW_THREADS PyThread_acquire_lock(zlib_lock, 1); \ Py_BEGIN_ALLOW_THREADS \
Py_END_ALLOW_THREADS PyThread_acquire_lock(zlib_lock, 1); \
Py_END_ALLOW_THREADS
#define LEAVE_ZLIB \ #define LEAVE_ZLIB \
PyThread_release_lock(zlib_lock); } PyThread_release_lock(zlib_lock);
#else #else