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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:21:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:21:29 +0000
commit29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc (patch)
tree63ef546b10a81d461e5cf5ed9e98a68cd7dee1aa /src/kash/shthread.c
parentInitial commit. (diff)
downloadkbuild-29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc.tar.xz
kbuild-29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc.zip
Adding upstream version 1:0.1.9998svn3589+dfsg.upstream/1%0.1.9998svn3589+dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/kash/shthread.c')
-rw-r--r--src/kash/shthread.c151
1 files changed, 151 insertions, 0 deletions
diff --git a/src/kash/shthread.c b/src/kash/shthread.c
new file mode 100644
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+++ b/src/kash/shthread.c
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+/* $Id: shthread.c 3505 2021-12-15 22:53:57Z bird $ */
+/** @file
+ *
+ * Shell Thread Management.
+ *
+ * Copyright (c) 2007-2010 knut st. osmundsen <bird-kBuild-spamx@anduin.net>
+ *
+ *
+ * This file is part of kBuild.
+ *
+ * kBuild is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * kBuild is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with kBuild; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include "shthread.h"
+#include "shinstance.h"
+
+#if K_OS == K_OS_WINDOWS
+# include <Windows.h>
+#elif K_OS == K_OS_OS2
+# include <InnoTekLIBC/FastInfoBlocks.h>
+# include <InnoTekLIBC/thread.h>
+#else
+# include <pthread.h>
+#endif
+
+
+/*******************************************************************************
+* Global Variables *
+*******************************************************************************/
+#if K_OS == K_OS_WINDOWS
+static DWORD sh_tls = TLS_OUT_OF_INDEXES;
+#elif K_OS == K_OS_OS2
+static int sh_tls = -1;
+#else
+static int sh_tls_inited = 0;
+static pthread_key_t sh_tls;
+#endif
+
+
+/**
+ * Stores the shell instance pointer in a TLS entry.
+ *
+ * This will allocate the TLS entry on the first call. We assume
+ * there will no be races at that time.
+ *
+ * @param psh The shell instance.
+ */
+void shthread_set_shell(struct shinstance *psh)
+{
+#if K_OS == K_OS_WINDOWS
+ if (sh_tls == TLS_OUT_OF_INDEXES)
+ {
+ sh_tls = TlsAlloc();
+ kHlpAssert(sh_tls != TLS_OUT_OF_INDEXES);
+ }
+ if (!TlsSetValue(sh_tls, psh))
+ kHlpAssert(0);
+
+#elif K_OS == K_OS_OS2
+ if (sh_tls == -1)
+ {
+ sh_tls = __libc_TLSAlloc();
+ kHlpAssert(sh_tls != -1);
+ }
+ if (__libc_TLSSet(sh_tls, psh) == -1)
+ kHlpAssert(0);
+#else
+ if (!sh_tls_inited)
+ {
+ if (pthread_key_create(&sh_tls, NULL) != 0)
+ kHlpAssert(0);
+ sh_tls_inited = 1;
+ }
+ if (pthread_setspecific(sh_tls, psh) != 0)
+ kHlpAssert(0);
+#endif
+}
+
+/**
+ * Get the shell instance pointer from TLS.
+ *
+ * @returns The shell instance.
+ */
+struct shinstance *shthread_get_shell(void)
+{
+ shinstance *psh;
+#if K_OS == K_OS_WINDOWS
+ psh = (shinstance *)TlsGetValue(sh_tls);
+#elif K_OS == K_OS_OS2
+ psh = (shinstance *)__libc_TLSGet(sh_tls);
+#else
+ psh = (shinstance *)pthread_getspecific(sh_tls);
+#endif
+ return psh;
+}
+
+
+/**
+ * Sets the name of the current thread if supported by the OS.
+ */
+void shthread_set_name(const char *name)
+{
+#if K_OS == K_OS_WINDOWS
+ typedef BOOL (WINAPI * PFNSETTHREADDESCRIPTION)(HANDLE, WCHAR *);
+ static KBOOL volatile s_initialized = K_FALSE;
+ static PFNSETTHREADDESCRIPTION volatile s_pfnSetThreadDescription = NULL;
+ PFNSETTHREADDESCRIPTION pfnSetThreadDescription = s_pfnSetThreadDescription;
+ WCHAR wszName[32];
+ size_t i;
+
+ /* Get the function pointer, return if not available. */
+ if (pfnSetThreadDescription)
+ { }
+ else if (s_initialized)
+ return;
+ else
+ {
+ pfnSetThreadDescription = (PFNSETTHREADDESCRIPTION)GetProcAddress(GetModuleHandleW(L"KERNEL32.DLL"),
+ "SetThreadDescription");
+ s_pfnSetThreadDescription = pfnSetThreadDescription;
+ s_initialized = K_TRUE;
+ if (!pfnSetThreadDescription)
+ return;
+ }
+
+ /* Convert the name to UTF-16 and call the API. */
+ i = strlen(name);
+ kHlpAssertStmt(i < K_ELEMENTS(wszName), i = K_ELEMENTS(wszName));
+ wszName[i] = '\0';
+ while (i-- > 0)
+ wszName[i] = name[i];
+
+ pfnSetThreadDescription(GetCurrentThread(), wszName);
+#else
+ K_NOREF(name);
+#endif
+}
+