Class: Pacct::Entry

Inherits:
Object
  • Object
show all
Defined in:
ext/pacct/pacct_c.c,
ext/pacct/pacct_c.c

Overview

Represents an entry in a Pacct::File

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.new ⇒ Object

This is the version of pacct_entry_new that is actually exposed to Ruby.



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# File 'ext/pacct/pacct_c.c', line 230

static VALUE ruby_pacct_entry_new(VALUE self) {
  return pacct_entry_new(NULL);
}

Instance Method Details

#command_name ⇒ Object

Returns the first 15 characters of the command name



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# File 'ext/pacct/pacct_c.c', line 654

static VALUE get_command_name(VALUE self) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  return rb_str_new2(data->ac_comm);
}

#command_name=(name) ⇒ Object

Sets the first 15 characters of the command name



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# File 'ext/pacct/pacct_c.c', line 664

static VALUE set_command_name(VALUE self, VALUE name) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  strncpy(data->ac_comm, StringValueCStr(name), ACCT_COMM - 1);
  data->ac_comm[ACCT_COMM - 1] = '\0';
  
  return Qnil;
}

#cpu_time ⇒ Object

Returns the task’s total CPU time in seconds



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# File 'ext/pacct/pacct_c.c', line 577

static VALUE get_cpu_time(VALUE self) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  return INT2NUM((comp_t_to_ulong(data->ac_utime) + comp_t_to_ulong(data->ac_stime)) / ticksPerSecond);
}

#exit_code ⇒ Object

Returns the command’s exit code



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# File 'ext/pacct/pacct_c.c', line 677

static VALUE get_exit_code(VALUE self) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  return INT2NUM(data->ac_exitcode);
}

#exit_code=(value) ⇒ Object

Sets the command’s exit code



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# File 'ext/pacct/pacct_c.c', line 687

static VALUE set_exit_code(VALUE self, VALUE value) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  data->ac_exitcode = NUM2UINT(value);
  
  return Qnil;
}

#group_id ⇒ Object

Returns the group ID of the user who executed the command



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# File 'ext/pacct/pacct_c.c', line 450

static VALUE get_group_id(VALUE self) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  return INT2NUM(data->ac_gid);
}

#group_name ⇒ Object

Returns the group name of the user who executed the command



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# File 'ext/pacct/pacct_c.c', line 460

static VALUE get_group_name(VALUE self) {
  struct acct_v3* data;
  struct group* group_data;
  VALUE name, id;
  Data_Get_Struct(self, struct acct_v3, data);
  
  id = UINT2NUM(data->ac_gid);
  name = rb_hash_aref(known_groups_by_id, id);
  if(name != Qnil) {
    return name;
  }
  
  errno = 0;
  group_data = getgrgid(data->ac_gid);
  if(!group_data) {
    char buf[512];
    VALUE err;
    int e = errno;
    snprintf(buf, 512, "Unable to obtain group name for ID %u", data->ac_gid);
    if(e == 0) {
      e = ENODATA;
    }
    err = rb_funcall(cSystemCallError, id_new, 2, rb_str_new2(buf), INT2NUM(e));
    rb_exc_raise(err);
  }
  
  name = rb_str_new2(group_data->gr_name);
  rb_hash_aset(known_groups_by_id, id, name);
  
  return name;
}

#group_name=(name) ⇒ Object

Sets the group name of the user who executed the command



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# File 'ext/pacct/pacct_c.c', line 495

static VALUE set_group_name(VALUE self, VALUE name) {
  struct acct_v3* data;
  struct group* group_data;
  VALUE id;
  char* c_name = StringValueCStr(name);
  Data_Get_Struct(self, struct acct_v3, data);
  
  id = rb_hash_aref(known_groups_by_name, name);
  if(id != Qnil) {
    data->ac_gid = NUM2UINT(id);
    return Qnil;
  }
  
  errno = 0;
  group_data = getgrnam(c_name);
  if(!group_data) {
    char buf[512];
    VALUE err;
    int e = errno;
    snprintf(buf, 512, "Unable to obtain group ID for name '%s'", c_name);
    if(e == 0) {
      e = ENODATA;
    } 
    err = rb_funcall(cSystemCallError, id_new, 2, rb_str_new2(buf), INT2NUM(e));
    rb_exc_raise(err);
  }
  
  id = UINT2NUM(group_data->gr_gid);
  rb_hash_aset(known_groups_by_name, name, id);
  
  data->ac_gid = group_data->gr_gid;
  
  return Qnil;
}

#memory ⇒ Object

Returns the task’s average memory usage in kilobytes



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# File 'ext/pacct/pacct_c.c', line 631

static VALUE get_average_mem_usage(VALUE self) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  //Why divided by page size?
  return INT2NUM(comp_t_to_ulong(data->ac_mem) * 1024 / pageSize);
}

#memory=(value) ⇒ Object

Sets the task’s average memory usage in kilobytes



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# File 'ext/pacct/pacct_c.c', line 642

static VALUE set_average_mem_usage(VALUE self, VALUE value) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  data->ac_mem = ulong_to_comp_t(NUM2ULONG(value) * pageSize / 1024);
  
  return Qnil;
}

#process_id ⇒ Object

Returns the process ID



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# File 'ext/pacct/pacct_c.c', line 342

static VALUE get_process_id(VALUE self) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  return INT2NUM(data->ac_pid);
}

#process_id=(pid) ⇒ Object

Sets the process ID



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# File 'ext/pacct/pacct_c.c', line 352

static VALUE set_process_id(VALUE self, VALUE pid) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  data->ac_pid = NUM2UINT(pid);
  
  return Qnil;
}

#start_time ⇒ Object

Returns the task’s start time



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# File 'ext/pacct/pacct_c.c', line 609

static VALUE get_start_time(VALUE self) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  return rb_funcall(cTime, id_at, 1, INT2NUM(data->ac_btime));
}

#start_time=(value) ⇒ Object

Sets the task’s start time



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# File 'ext/pacct/pacct_c.c', line 619

static VALUE set_start_time(VALUE self, VALUE value) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  data->ac_btime = NUM2UINT(rb_funcall(value, id_to_i, 0));
  
  return Qnil;
}

#system_time ⇒ Object

Returns the task’s total system CPU time in seconds



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# File 'ext/pacct/pacct_c.c', line 555

static VALUE get_system_time(VALUE self) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  return INT2NUM(comp_t_to_ulong(data->ac_stime) / ticksPerSecond);
}

#system_time=(value) ⇒ Object

Sets the task’s total system CPU time



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# File 'ext/pacct/pacct_c.c', line 565

static VALUE set_system_time(VALUE self, VALUE value) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  data->ac_stime = ulong_to_comp_t(NUM2ULONG(value) * ticksPerSecond);
  
  return Qnil;
}

#user_id ⇒ Object

Returns the ID of the user who executed the command



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# File 'ext/pacct/pacct_c.c', line 364

static VALUE get_user_id(VALUE self) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  return INT2NUM(data->ac_uid);
}

#user_name ⇒ Object

Returns the name of the user who executed the command



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# File 'ext/pacct/pacct_c.c', line 374

static VALUE get_user_name(VALUE self) {
  struct acct_v3* data;
  struct passwd* pw_data;
  VALUE id, name;
  Data_Get_Struct(self, struct acct_v3, data);
  
  //If there's a cached user name, return it.
  id = UINT2NUM(data->ac_uid);
  name = rb_hash_aref(known_users_by_id, id);
  if(name != Qnil) {
    return name;
  }
  
  //Otherwise, get the user name from the OS.
  errno = 0;
  pw_data = getpwuid(data->ac_uid);
  if(!pw_data) {
    char buf[512];
    VALUE err;
    int e = errno;
    snprintf(buf, 512, "Unable to obtain user name for ID %u", data->ac_uid);
    if(e == 0) {
        e = ENODATA;
    }
    err = rb_funcall(cSystemCallError, id_new, 2, rb_str_new2(buf), INT2NUM(e));
    rb_exc_raise(err);
  }
  
  //Cache the user name.
  name = rb_str_new2(pw_data->pw_name);
  rb_hash_aset(known_users_by_id, id, name);
  
  return name;
}

#user_name=(name) ⇒ Object

Sets the name of the user who executed the command



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# File 'ext/pacct/pacct_c.c', line 412

static VALUE set_user_name(VALUE self, VALUE name) {
  struct acct_v3* data;
  struct passwd* pw_data;
  char* c_name = StringValueCStr(name);
  VALUE id;
  Data_Get_Struct(self, struct acct_v3, data);
  
  id = rb_hash_aref(known_users_by_name, name);
  if(id != Qnil) {
    data->ac_uid = NUM2UINT(id);
    return Qnil;
  }
  
  errno = 0;
  pw_data = getpwnam(c_name);
  if(!pw_data) {
    char buf[512];
    VALUE err;
    int e = errno;
    snprintf(buf, 512, "Unable to obtain user ID for name '%s'", c_name);
    if(e == 0) {
        e = ENODATA;
    }
    err = rb_funcall(cSystemCallError, id_new, 2, rb_str_new2(buf), INT2NUM(e));
    rb_exc_raise(err);
  }
  
  id = UINT2NUM(pw_data->pw_uid);
  rb_hash_aset(known_users_by_name, name, id);
  
  data->ac_uid = pw_data->pw_uid;
  
  return Qnil;
}

#user_time ⇒ Object

Returns the task’s total user CPU time in seconds



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# File 'ext/pacct/pacct_c.c', line 533

static VALUE get_user_time(VALUE self) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  return INT2NUM(comp_t_to_ulong(data->ac_utime) / ticksPerSecond);
}

#user_time=(value) ⇒ Object

Sets the task’s total user CPU time



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# File 'ext/pacct/pacct_c.c', line 543

static VALUE set_user_time(VALUE self, VALUE value) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  data->ac_utime = ulong_to_comp_t(NUM2ULONG(value) * ticksPerSecond);
  
  return Qnil;
}

#wall_time ⇒ Object

Returns the task’s total wall time in seconds



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# File 'ext/pacct/pacct_c.c', line 587

static VALUE get_wall_time(VALUE self) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  return rb_float_new(data->ac_etime);
}

#wall_time=(value) ⇒ Object

Sets the task’s total wall time



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# File 'ext/pacct/pacct_c.c', line 597

static VALUE set_wall_time(VALUE self, VALUE value) {
  struct acct_v3* data;
  Data_Get_Struct(self, struct acct_v3, data);
  
  data->ac_etime = NUM2DBL(value);
  
  return Qnil;
}