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profiling: improve 3.12 error message for calling lsprof twice...
profiling: improve 3.12 error message for calling lsprof twice Python 3.12 prevent lsprof to be enabled if it is already enabled. This break the use of lsprof in `hg serve` as both the initial `serve` command and the request serving want to profile. The "stat" profiler (the default) does not have this problem, so we focus on improving the error message for now.

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mpatchbuild.py
38 lines | 1017 B | text/x-python | PythonLexer
import cffi
import os
ffi = cffi.FFI()
mpatch_c = os.path.join(
os.path.join(os.path.dirname(__file__), '..', 'mpatch.c')
)
with open(mpatch_c) as f:
ffi.set_source(
"mercurial.cffi._mpatch", f.read(), include_dirs=["mercurial"]
)
ffi.cdef(
"""
struct mpatch_frag {
int start, end, len;
const char *data;
};
struct mpatch_flist {
struct mpatch_frag *base, *head, *tail;
};
extern "Python" struct mpatch_flist* cffi_get_next_item(void*, ssize_t);
int mpatch_decode(const char *bin, ssize_t len, struct mpatch_flist** res);
ssize_t mpatch_calcsize(size_t len, struct mpatch_flist *l);
void mpatch_lfree(struct mpatch_flist *a);
static int mpatch_apply(char *buf, const char *orig, size_t len,
struct mpatch_flist *l);
struct mpatch_flist *mpatch_fold(void *bins,
struct mpatch_flist* (*get_next_item)(void*, ssize_t),
ssize_t start, ssize_t end);
"""
)
if __name__ == '__main__':
ffi.compile()