#pragma once

#include "types.hh"


namespace nix {


/* Open (possibly create) a lock file and return the file descriptor.
   -1 is returned if create is false and the lock could not be opened
   because it doesn't exist.  Any other error throws an exception. */
int openLockFile(const Path & path, bool create);

/* Delete an open lock file. */
void deleteLockFile(const Path & path, int fd);

enum LockType { ltRead, ltWrite, ltNone };

bool lockFile(int fd, LockType lockType, bool wait);


class PathLocks 
{
private:
    typedef std::pair<int, Path> FDPair;
    list<FDPair> fds;
    bool deletePaths;

public:
    PathLocks();
    PathLocks(const PathSet & paths,
        const string & waitMsg = "");
    bool lockPaths(const PathSet & _paths,
        const string & waitMsg = "",
        bool wait = true);
    ~PathLocks();
    void unlock();
    void setDeletion(bool deletePaths);
};


bool pathIsLockedByMe(const Path & path);


}
r>
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<div class='path'>path: <a href='/guix/log/?id=9b3e68992643e05027c158da77ac8f9ae20477aa'>root</a>/<a href='/guix/log/gnu?id=9b3e68992643e05027c158da77ac8f9ae20477aa'>gnu</a>/<a href='/guix/log/gnu/services?id=9b3e68992643e05027c158da77ac8f9ae20477aa'>services</a>/<a href='/guix/log/gnu/services/sound.scm?id=9b3e68992643e05027c158da77ac8f9ae20477aa'>sound.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/services/sound.scm?id=9b3e68992643e05027c158da77ac8f9ae20477aa&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-03-07 11:39:50 +0100'>2023-03-07</span></td><td><a href='/guix/commit/gnu/services/sound.scm?id=8390b47c045efca88785b5ed9210cb7aa13cb63a'>services: ladspa: Export accessors.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/service/sound.scm: Export ladspa-configuration? and
ladspa-configuration-plugins.
(&lt;ladspa-configuration&gt;)[plugins]: Rename accessor to ladspa-configuration-plugins.
(ladspa-environment): Adjust to use renamed plugin accessor.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2023-03-07 11:39:49 +0100'>2023-03-07</span></td><td><a href='/guix/commit/gnu/services/sound.scm?id=16a48d94bc67afbfbe83ac4b2245ba94fd5bda70'>services: alsa: Export accessors.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/sound.scm: Export alsa-configuration?,
alsa-configuration-alsa-plugins, alsa-configuration-pulseaudio?
and alsa-configuration-extra-options.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2023-03-07 11:39:49 +0100'>2023-03-07</span></td><td><a href='/guix/commit/gnu/services/sound.scm?id=25638729cb3a0c93d5fd10af19aa1a6e76b425bd'>services: pulseaudio: Export accessors.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/sound.scm: Export pulseaudio-configuration?,
pulseaudio-configuration-client-conf, pulseaudio-configuration-daemon-conf,
pulseaudio-configuration-script-file, pulseaudio-configuration-extra-script-files
and pulseaudio-configuration-system-script-file.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Bruno Victal</td></tr>
<tr><td><span title='2022-12-28 16:58:03 -0500'>2022-12-28</span></td><td><a href='/guix/commit/gnu/services/sound.scm?id=4ca649e978f08335fcabdcef693a7049082b5373'>services: pulseaudio: Fix /etc/pulse/default.pa not being used.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://issues.guix.gnu.org/60383&gt;.

* gnu/services/sound.scm (pulseaudio-etc): Produce daemon.conf
unconditionally, with the correct default-script-file location.  Produce
client.conf unconditionally.

Reported-by: Bruno Victal &lt;mirai@makinata.eu&gt;
</span></span></td><td>Maxim Cournoyer</td></tr>