#include "types.hh"
#include "util.hh"
#include "affinity.hh"

#if HAVE_SCHED_H
#include <sched.h>
#endif

namespace nix {


#if HAVE_SCHED_SETAFFINITY
static bool didSaveAffinity = false;
static cpu_set_t savedAffinity;
#endif


void setAffinityTo(int cpu)
{
#if HAVE_SCHED_SETAFFINITY
    if (sched_getaffinity(0, sizeof(cpu_set_t), &savedAffinity) == -1) return;
    didSaveAffinity = true;
    printMsg(lvlDebug, format("locking this thread to CPU %1%") % cpu);
    cpu_set_t newAffinity;
    CPU_ZERO(&newAffinity);
    CPU_SET(cpu, &newAffinity);
    if (sched_setaffinity(0, sizeof(cpu_set_t), &newAffinity) == -1)
        printMsg(lvlError, format("failed to lock thread to CPU %1%") % cpu);
#endif
}


int lockToCurrentCPU()
{
#if HAVE_SCHED_SETAFFINITY
    int cpu = sched_getcpu();
    if (cpu != -1) setAffinityTo(cpu);
    return cpu;
#else
    return -1;
#endif
}


void restoreAffinity()
{
#if HAVE_SCHED_SETAFFINITY
    if (!didSaveAffinity) return;
    if (sched_setaffinity(0, sizeof(cpu_set_t), &savedAffinity) == -1)
        printMsg(lvlError, "failed to restore affinity %1%");
#endif
}


}
ref='/guix/'>summary</a><a href='/guix/refs/?id=80b0e796290cb2b263982f74d9192da6f6b8e335'>refs</a><a class='active' href='/guix/log/tests/git-authenticate.scm'>log</a><a href='/guix/tree/tests/git-authenticate.scm?id=80b0e796290cb2b263982f74d9192da6f6b8e335'>tree</a><a href='/guix/commit/tests/git-authenticate.scm?id=80b0e796290cb2b263982f74d9192da6f6b8e335'>commit</a><a href='/guix/diff/tests/git-authenticate.scm?id=80b0e796290cb2b263982f74d9192da6f6b8e335'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/tests/git-authenticate.scm'>
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<div class='path'>path: <a href='/guix/log/?id=80b0e796290cb2b263982f74d9192da6f6b8e335'>root</a>/<a href='/guix/log/tests?id=80b0e796290cb2b263982f74d9192da6f6b8e335'>tests</a>/<a href='/guix/log/tests/git-authenticate.scm?id=80b0e796290cb2b263982f74d9192da6f6b8e335'>git-authenticate.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/tests/git-authenticate.scm?id=80b0e796290cb2b263982f74d9192da6f6b8e335&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-12-22 10:53:19 +0100'>2021-12-22</span></td><td><a href='/guix/commit/tests/git-authenticate.scm?id=9ebc9ca070a21ba0aeb3f61202a8071bb250ccc8'>tests: Move keys into ./tests/keys/ and add a third ed25519 key.</a><span class='msg-avail'>...<span class='msg-tooltip'>The third key will be used in an upcoming commit.

Rename public keys to .pub.

* guix/tests/gnupg.scm (%ed25519-3-public-key-file): New variable.
(%ed25519-3-secret-key-file): New variable.
(%ed25519-2-public-key-file): Renamed from %ed25519bis-public-key-file.
(%ed25519-2-secret-key-file): Renamed from %ed25519bis-secret-key-file.
* tests/keys/ed25519-3.key: New file.
* tests/keys/ed25519-3.sec: New file.

Signed-off-by: Mathieu Othacehe &lt;othacehe@gnu.org&gt;
</span></span></td><td>Attila Lendvai</td></tr>
<tr><td><span title='2020-06-28 23:26:53 +0200'>2020-06-28</span></td><td><a href='/guix/commit/tests/git-authenticate.scm?id=0a8dd8aae5fad365c2f429d48e4085a3b3388332'>tests: Allow 'tests/git-authenticate.scm' to run when git/gpg is missing.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://bugs.gnu.org/42077&gt;.
Reported by Jan Nieuwenhuizen &lt;janneke@gnu.org&gt;.

The typo was introduced in 7b06781a58326f251c4af6340379d68e3cb98adb.

* tests/git-authenticate.scm &lt;top level&gt;: Remove call to 'which'
around (gpg+git-available?).
</span></span></td><td>Ludovic Courtès</td></tr>