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Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags.

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Add dlopenflags to PyInterpreterState, and use it in dlopen calls.
This commit is contained in:
Martin v. Löwis 2001-07-18 16:17:16 +00:00
parent 984158d25b
commit f0473d511b
6 changed files with 103 additions and 13 deletions
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21
Doc/lib/libsys.tex
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@ -180,6 +180,13 @@ way to exit a program when an error occurs.
\versionadded{2.0}
\end{funcdesc}
\begin{funcdesc}{getdlopenflags}{}
Return the current value of the flags that are used for \code{dlopen}
calls. The flag constants are defined in the \refmodule{dl} and
\module{DLFCN} modules.
\versionadded{2.2}
\end{funcdesc}
\begin{funcdesc}{getrefcount}{object}
Return the reference count of the \var{object}. The count returned is
generally one higher than you might expect, because it includes the
@ -333,6 +340,20 @@ maximizing responsiveness as well as overhead.
\versionadded{2.0}
\end{funcdesc}
\begin{funcdesc}{sertdlopenflags}{n}
Set the flags that will be used for \code{dlopen()} calls, i.e. when
the interpreter loads extension modules. Among other things, this
will enable a lazy resolving of symbols when imporing a module, if
called as \code{sys.setdlopenflags(0)}. To share symols across
extension modules, call as
\code{sys.setdlopenflags(dl.RTLD_NOW|dl.RTLD_GLOBAL)}. The symbolic
names for the flag modules can be either found in the \refmodule{dl}
module, or in the \module{DLFCN} module. If \module{DLFCN} is not
available, it can be generated from \code{/usr/include/dlfcn.h} using
the \code{h2py} script.
\versionadded{2.2}
\end{funcdesc}
\begin{funcdesc}{setprofile}{profilefunc}
Set the system's profile function, which allows you to implement a
Python source code profiler in Python. See the chapter on the