xnu-1228.5.18.tar.gz

[apple/xnu.git] / bsd / sys / resource.h

diff --git a/bsd/sys/resource.h b/bsd/sys/resource.h
index 622ad92c50f5ec4f511a372327f9ea82877c53de..747b77b689c3e1dae33f1c5a18ca7afef9648ad5 100644 (file)
--- a/bsd/sys/resource.h
+++ b/bsd/sys/resource.h
@@ -1,5 +1,5 @@
 /*
 /*

- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 


@@ -71,17 +71,9 @@
 
 /* [XSI] The timeval structure shall be defined as described in
  * <sys/time.h>
 
 /* [XSI] The timeval structure shall be defined as described in
  * <sys/time.h>

- *
- * NB: We use __darwin_time_t and __darwin_suseconds_t here to avoid
- * improperly exposing time_t and suseconds_t into the namespace.

  */
  */

-#ifndef _TIMEVAL
-#define _TIMEVAL
-struct timeval {
-       __darwin_time_t         tv_sec;         /* seconds */
-       __darwin_suseconds_t    tv_usec;        /* and microseconds */
-};
-#endif
+#define __need_struct_timeval
+#include <sys/_structs.h>

 
 /* The id_t type shall be defined as described in <sys/types.h> */
 #ifndef _ID_T
 
 /* The id_t type shall be defined as described in <sys/types.h> */
 #ifndef _ID_T


@@ -93,7 +85,7 @@ typedef __darwin_id_t id_t;           /* can hold pid_t, gid_t, or uid_t */
 /*
  * Resource limit type (low 63 bits, excluding the sign bit)
  */
 /*
  * Resource limit type (low 63 bits, excluding the sign bit)
  */

-typedef __int64_t      rlim_t;
+typedef __uint64_t     rlim_t;

 
 
 /*****
 
 
 /*****


@@ -108,13 +100,22 @@ typedef __int64_t rlim_t;
 #define        PRIO_PGRP       1               /* Second argument is a GID */
 #define        PRIO_USER       2               /* Second argument is a UID */
 
 #define        PRIO_PGRP       1               /* Second argument is a GID */
 #define        PRIO_USER       2               /* Second argument is a UID */
 

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+#define        PRIO_DARWIN_THREAD      3               /* Second argument is always 0 (current thread) */
+

 /*
  * Range limitations for the value of the third parameter to setpriority().
  */
 #define        PRIO_MIN        -20
 #define        PRIO_MAX        20
 /*
  * Range limitations for the value of the third parameter to setpriority().
  */
 #define        PRIO_MIN        -20
 #define        PRIO_MAX        20

-#endif /* !_POSIX_C_SOURCE */
+
+/* use PRIO_DARWIN_BG to set the current thread into "background" state
+ * which lowers CPU, disk IO, and networking priorites until thread terminates
+ * or "background" state is revoked
+ */
+#define PRIO_DARWIN_BG 0x1000
+
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 
 
 
 
 
 


@@ -139,38 +140,36 @@ typedef __int64_t rlim_t;
  *       is discouraged for standards compliant programs.
  */
 struct rusage {
  *       is discouraged for standards compliant programs.
  */
 struct rusage {

-       struct timeval ru_utime;        /* user time used */
-       struct timeval ru_stime;        /* system time used */
-#ifdef _POSIX_C_SOURCE
+       struct timeval ru_utime;        /* user time used (PL) */
+       struct timeval ru_stime;        /* system time used (PL) */
+#if defined(_POSIX_C_SOURCE) && !defined(_DARWIN_C_SOURCE)

        long    ru_opaque[14];          /* implementation defined */
        long    ru_opaque[14];          /* implementation defined */

-#else  /* !_POSIX_C_SOURCE */
+#else  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

        /*
         * Informational aliases for source compatibility with programs
         * that need more information than that provided by standards,
         * and which do not mind being OS-dependent.
         */
        /*
         * Informational aliases for source compatibility with programs
         * that need more information than that provided by standards,
         * and which do not mind being OS-dependent.
         */

-       long    ru_maxrss;              /* max resident set size */
+       long    ru_maxrss;              /* max resident set size (PL) */

 #define        ru_first        ru_ixrss        /* internal: ruadd() range start */
 #define        ru_first        ru_ixrss        /* internal: ruadd() range start */

-       long    ru_ixrss;               /* integral shared memory size */
-       long    ru_idrss;               /* integral unshared data " */
-       long    ru_isrss;               /* integral unshared stack " */
-       long    ru_minflt;              /* page reclaims */
-       long    ru_majflt;              /* page faults */
-       long    ru_nswap;               /* swaps */
-       long    ru_inblock;             /* block input operations */
-       long    ru_oublock;             /* block output operations */
-       long    ru_msgsnd;              /* messages sent */
-       long    ru_msgrcv;              /* messages received */
-       long    ru_nsignals;            /* signals received */
-       long    ru_nvcsw;               /* voluntary context switches */
+       long    ru_ixrss;               /* integral shared memory size (NU) */
+       long    ru_idrss;               /* integral unshared data (NU)  */
+       long    ru_isrss;               /* integral unshared stack (NU) */
+       long    ru_minflt;              /* page reclaims (NU) */
+       long    ru_majflt;              /* page faults (NU) */
+       long    ru_nswap;               /* swaps (NU) */
+       long    ru_inblock;             /* block input operations (atomic) */
+       long    ru_oublock;             /* block output operations (atomic) */
+       long    ru_msgsnd;              /* messages sent (atomic) */
+       long    ru_msgrcv;              /* messages received (atomic) */
+       long    ru_nsignals;            /* signals received (atomic) */
+       long    ru_nvcsw;               /* voluntary context switches (atomic) */

        long    ru_nivcsw;              /* involuntary " */
 #define        ru_last         ru_nivcsw       /* internal: ruadd() range end */
        long    ru_nivcsw;              /* involuntary " */
 #define        ru_last         ru_nivcsw       /* internal: ruadd() range end */

-#endif /* !_POSIX_C_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 };
 
 
 };
 
 

-
-// LP64todo - should this move?

 #ifdef KERNEL
 #include <machine/types.h>     /* user_time_t */
 
 #ifdef KERNEL
 #include <machine/types.h>     /* user_time_t */
 


@@ -222,21 +221,22 @@ struct    user_rusage {
  * Possible values of the first parameter to getrlimit()/setrlimit(), to
  * indicate for which resource the operation is being performed.
  */
  * Possible values of the first parameter to getrlimit()/setrlimit(), to
  * indicate for which resource the operation is being performed.
  */

-#define        RLIMIT_CPU      0               /* cpu time per process, in ms */
+#define        RLIMIT_CPU      0               /* cpu time per process */

 #define        RLIMIT_FSIZE    1               /* file size */
 #define        RLIMIT_DATA     2               /* data segment size */
 #define        RLIMIT_STACK    3               /* stack size */
 #define        RLIMIT_CORE     4               /* core file size */
 #define        RLIMIT_AS       5               /* address space (resident set size) */
 #define        RLIMIT_FSIZE    1               /* file size */
 #define        RLIMIT_DATA     2               /* data segment size */
 #define        RLIMIT_STACK    3               /* stack size */
 #define        RLIMIT_CORE     4               /* core file size */
 #define        RLIMIT_AS       5               /* address space (resident set size) */

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 #define        RLIMIT_RSS      RLIMIT_AS       /* source compatibility alias */
 #define        RLIMIT_MEMLOCK  6               /* locked-in-memory address space */
 #define        RLIMIT_NPROC    7               /* number of processes */
 #define        RLIMIT_RSS      RLIMIT_AS       /* source compatibility alias */
 #define        RLIMIT_MEMLOCK  6               /* locked-in-memory address space */
 #define        RLIMIT_NPROC    7               /* number of processes */

-#endif /* !_POSIX_C_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 #define        RLIMIT_NOFILE   8               /* number of open files */
 #define        RLIMIT_NOFILE   8               /* number of open files */

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 #define        RLIM_NLIMITS    9               /* total number of resource limits */
 #define        RLIM_NLIMITS    9               /* total number of resource limits */

-#endif /* !_POSIX_C_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
+#define _RLIMIT_POSIX_FLAG     0x1000  /* Set bit for strict POSIX */

 
 /*
  * A structure representing a resource limit.  The address of an instance
 
 /*
  * A structure representing a resource limit.  The address of an instance


@@ -247,15 +247,58 @@ struct rlimit {
        rlim_t  rlim_max;               /* maximum value for rlim_cur */
 };
 
        rlim_t  rlim_max;               /* maximum value for rlim_cur */
 };
 

+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+/* I/O type */
+#define IOPOL_TYPE_DISK        0
+
+/* scope */
+#define IOPOL_SCOPE_PROCESS   0
+#define IOPOL_SCOPE_THREAD    1
+
+/* I/O Priority */
+#define IOPOL_DEFAULT  0
+#define IOPOL_NORMAL   1
+#define IOPOL_PASSIVE  2
+#define IOPOL_THROTTLE 3
+
+#ifdef PRIVATE
+/*
+ * Structures for use in communicating via iopolicysys() between Lic and the
+ * kernel.  Not to be used by uesr programs directly.
+ */
+
+/*
+ * the command to iopolicysys()
+ */
+#define        IOPOL_CMD_GET           0x00000001      /* Get I/O policy */
+#define        IOPOL_CMD_SET           0x00000002      /* Set I/O policy */
+
+/*
+ * Second parameter to iopolicysys()
+ */
+struct _iopol_param_t {
+       int iop_scope;  /* current process or a thread */
+       int iop_iotype;
+       int iop_policy;
+};
+
+#endif /* PRIVATE */
+#endif /* !_POSIX_C_SOURCE || _DARWIN_C_SOURCE */

 
 #ifndef KERNEL
 
 __BEGIN_DECLS
 int    getpriority(int, id_t);
 
 #ifndef KERNEL
 
 __BEGIN_DECLS
 int    getpriority(int, id_t);

-int    getrlimit(int, struct rlimit *);
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+int    getiopolicy_np(int, int);
+#endif /* !_POSIX_C_SOURCE || _DARWIN_C_SOURCE */
+int    getrlimit(int, struct rlimit *) __DARWIN_ALIAS(getrlimit);

 int    getrusage(int, struct rusage *);
 int    setpriority(int, id_t, int);
 int    getrusage(int, struct rusage *);
 int    setpriority(int, id_t, int);

-int    setrlimit(int, const struct rlimit *);
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+int    setiopolicy_np(int, int, int);
+#endif /* !_POSIX_C_SOURCE || _DARWIN_C_SOURCE */
+int    setrlimit(int, const struct rlimit *) __DARWIN_ALIAS(setrlimit);

 __END_DECLS
 
 #endif /* !KERNEL */
 __END_DECLS
 
 #endif /* !KERNEL */