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/*
* This is a stripped-down and hacked version of task.h from NextStep 2.1
* from the Informer.app by Max Tardiveau.
*
* tpugh 2/14/1996
* I've modify this task structure to account some unknown variables in
* NeXT's new (unpublished) task structure, so I can get to the utask structure.
* tmp1[3] is in the right place, but tmp2[3] may not be in the right place.
* So do not be surprised if any other variable in the structure, except utask,
* are incorrectly aligned.
*
*/
#import <mach/boolean.h>
#import <mach/port.h>
#import <mach/time_value.h>
#import <kernserv/lock.h>
#import <kernserv/queue.h>
#import <mach/mach_param.h>
#import <mach/mach_types.h>
struct task {
/* Synchronization/destruction information */
int ref_count; /* Number of references to me */
boolean_t active; /* Task has not been terminated */
/* Miscellaneous */
char map[4]; /* Address space description */
queue_chain_t pset_tasks; /* list of tasks assigned to pset */
int suspend_count; /* Internal scheduling only */
/* Thread information */
queue_head_t thread_list; /* list of threads */
int thread_count; /* number of threads */
processor_set_t processor_set; /* processor set for new threads */
boolean_t may_assign; /* can assigned pset be changed? */
boolean_t assign_active; /* waiting for may_assign */
/* Garbage */
struct utask *u_address;
#if NeXT
struct proc *proc; /* corresponding process */
#else NeXT
int proc_index; /* corresponding process, by index */
#endif NeXT
/* User-visible scheduling information */
int user_stop_count; /* outstanding stops */
int priority; /* for new threads */
/* Information for kernel-internal tasks */
#if NeXT
boolean_t kernel_privilege; /* Is a kernel task */
#endif NeXT
boolean_t kernel_ipc_space; /* Uses kernel's port names? */
boolean_t kernel_vm_space; /* Uses kernel's pmap? */
/* Statistics */
time_value_t total_user_time;
/* total user time for dead threads */
time_value_t total_system_time;
/* total system time for dead threads */
/* Special ports */
port_t task_self; /* Port representing the task */
port_t task_tself; /* What the task thinks is task_self */
port_t task_notify; /* Where notifications get sent */
port_t exception_port; /* Where exceptions are sent */
port_t bootstrap_port; /* Port passed on for task startup */
/* IPC structures */
boolean_t ipc_privilege; /* Can use kernel resource pools? */
char ipc_translation_lock[4];
queue_head_t ipc_translations; /* Per-task port naming */
boolean_t ipc_active; /* Can IPC rights be added? */
port_name_t ipc_next_name; /* Next local name to use */
#if MACH_IPC_XXXHACK
kern_set_t ipc_enabled; /* Port set for PORT_ENABLED */
#endif MACH_IPC_XXXHACK
#if MACH_IPC_TCACHE
#define OBJ_CACHE_MAX 010 /* Number of cache lines */
#define OBJ_CACHE_MASK 007 /* Mask for name->line */
struct {
port_name_t name;
kern_obj_t object;
} obj_cache[OBJ_CACHE_MAX];
/* Fast object translation cache */
#endif MACH_IPC_TCACHE
/* IPC compatibility garbage */
boolean_t ipc_intr_msg; /* Send signal upon message arrival? */
#define TASK_PORT_REGISTER_MAX 4 /* Number of "registered" ports */
port_t ipc_ports_registered[TASK_PORT_REGISTER_MAX];
};
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.