| 1 | /* |
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| 2 | * This is a stripped-down and hacked version of task.h from NextStep 2.1 |
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| 3 | * from the Informer.app by Max Tardiveau. |
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| 4 | * |
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| 5 | * tpugh 2/14/1996 |
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| 6 | * I've modify this task structure to account some unknown variables in |
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| 7 | * NeXT's new (unpublished) task structure, so I can get to the utask structure. |
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| 8 | * tmp1[3] is in the right place, but tmp2[3] may not be in the right place. |
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| 9 | * So do not be surprised if any other variable in the structure, except utask, |
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| 10 | * is incorrectly aligned. |
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| 11 | * |
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| 12 | */ |
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| 13 | |
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| 14 | |
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| 15 | #import <mach/boolean.h> |
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| 16 | #import <mach/port.h> |
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| 17 | #import <mach/time_value.h> |
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| 18 | #import <kernserv/lock.h> |
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| 19 | #import <kernserv/queue.h> |
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| 20 | #import <mach/mach_param.h> |
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| 21 | #import <mach/mach_types.h> |
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| 22 | |
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| 23 | struct task { |
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| 24 | #ifdef NEXTSTEP40 |
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| 25 | int tmp1[3]; |
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| 26 | #endif |
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| 27 | /* Synchronization/destruction information */ |
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| 28 | char lock[4]; |
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| 29 | int ref_count; /* Number of references to me */ |
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| 30 | boolean_t active; /* Task has not been terminated */ |
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| 31 | |
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| 32 | /* Miscellaneous */ |
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| 33 | char map[4]; /* Address space description */ |
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| 34 | queue_chain_t pset_tasks; /* list of tasks assigned to pset */ |
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| 35 | int suspend_count; /* Internal scheduling only */ |
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| 36 | |
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| 37 | /* Thread information */ |
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| 38 | queue_head_t thread_list; /* list of threads */ |
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| 39 | int thread_count; /* number of threads */ |
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| 40 | char thread_list_lock[4]; /* XXX thread_list lock */ |
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| 41 | processor_set_t processor_set; /* processor set for new threads */ |
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| 42 | #ifdef NEXTSTEP40 |
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| 43 | int tmp2[3]; |
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| 44 | #endif |
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| 45 | boolean_t may_assign; /* can assigned pset be changed? */ |
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| 46 | boolean_t assign_active; /* waiting for may_assign */ |
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| 47 | |
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| 48 | /* Garbage */ |
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| 49 | struct utask *u_address; |
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| 50 | #if NeXT |
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| 51 | struct proc *proc; /* corresponding process */ |
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| 52 | #else NeXT |
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| 53 | int proc_index; /* corresponding process, by index */ |
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| 54 | #endif NeXT |
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| 55 | |
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| 56 | /* User-visible scheduling information */ |
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| 57 | int user_stop_count; /* outstanding stops */ |
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| 58 | int priority; /* for new threads */ |
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| 59 | |
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| 60 | /* Information for kernel-internal tasks */ |
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| 61 | #if NeXT |
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| 62 | boolean_t kernel_privilege; /* Is a kernel task */ |
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| 63 | #endif NeXT |
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| 64 | boolean_t kernel_ipc_space; /* Uses kernel's port names? */ |
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| 65 | boolean_t kernel_vm_space; /* Uses kernel's pmap? */ |
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| 66 | |
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| 67 | /* Statistics */ |
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| 68 | time_value_t total_user_time; |
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| 69 | /* total user time for dead threads */ |
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| 70 | time_value_t total_system_time; |
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| 71 | /* total system time for dead threads */ |
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| 72 | |
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| 73 | /* Special ports */ |
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| 74 | port_t task_self; /* Port representing the task */ |
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| 75 | port_t task_tself; /* What the task thinks is task_self */ |
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| 76 | port_t task_notify; /* Where notifications get sent */ |
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| 77 | port_t exception_port; /* Where exceptions are sent */ |
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| 78 | port_t bootstrap_port; /* Port passed on for task startup */ |
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| 79 | |
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| 80 | /* IPC structures */ |
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| 81 | boolean_t ipc_privilege; /* Can use kernel resource pools? */ |
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| 82 | char ipc_translation_lock[4]; |
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| 83 | queue_head_t ipc_translations; /* Per-task port naming */ |
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| 84 | boolean_t ipc_active; /* Can IPC rights be added? */ |
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| 85 | port_name_t ipc_next_name; /* Next local name to use */ |
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| 86 | #if MACH_IPC_XXXHACK |
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| 87 | kern_set_t ipc_enabled; /* Port set for PORT_ENABLED */ |
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| 88 | #endif MACH_IPC_XXXHACK |
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| 89 | |
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| 90 | #if MACH_IPC_TCACHE |
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| 91 | #define OBJ_CACHE_MAX 010 /* Number of cache lines */ |
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| 92 | #define OBJ_CACHE_MASK 007 /* Mask for name->line */ |
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| 93 | |
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| 94 | struct { |
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| 95 | port_name_t name; |
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| 96 | kern_obj_t object; |
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| 97 | } obj_cache[OBJ_CACHE_MAX]; |
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| 98 | /* Fast object translation cache */ |
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| 99 | #endif MACH_IPC_TCACHE |
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| 100 | |
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| 101 | /* IPC compatibility garbage */ |
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| 102 | boolean_t ipc_intr_msg; /* Send signal upon message arrival? */ |
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| 103 | #define TASK_PORT_REGISTER_MAX 4 /* Number of "registered" ports */ |
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| 104 | port_t ipc_ports_registered[TASK_PORT_REGISTER_MAX]; |
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| 105 | }; |
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