1GEARMAN_RETURN_T(3)                Gearmand                GEARMAN_RETURN_T(3)
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NAME

6       gearman_return_t - Gearmand Documentation, http://gearman.info/
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SYNOPSIS

9       #include <libgearman/gearman.h>
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11       gearman_return_t
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13       const char *gearman_strerror(gearman_return_t rc)
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15       bool gearman_success(gearman_return_t rc)
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17       bool gearman_failed(gearman_return_t rc)
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19       bool gearman_continue(gearman_return_t rc)
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21       Compile and link with -lgearman
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DESCRIPTION

24       gearman_return_t  is  used  as  a return/error type for all calls using
25       gearman_client_st and gearman_worker_st.  GEARMAN_SUCCESS  is  returned
26       upon  success,  otherwise an error is returned. gearman_failed() can be
27       used to see if the return value is a failing value.  You  can  print  a
28       text version of the error message with gearman_strerror().
29
30       gearman_success()    return    true    if    GEARMAN_SUCCESS    or   if
31       GEARMAN_NO_PENDING_TASKS tests true.
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33       gearman_failed() return true if any value  other  then  GEARMAN_SUCCESS
34       was provided.
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36       gearman_continue() returns true if any error related to non-blocking IO
37       occurred. This should be used for testing loops.
38
39   Possible values of gearman_return_t:
40       GEARMAN_SUCCESS
41              Success
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43       GEARMAN_NO_PENDING_TASKS
44              gearman_client_run_tasks() was called and it has  completed  all
45              tasks assigned to the client.
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47       GEARMAN_IO_WAIT
48              Blocking  IO  was  found. gearman_continue() can be used to test
49              for this.
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51       GEARMAN_ERRNO
52              System error  occurred.  Use  either  gearman_client_errno()  or
53              gearman_worker_errno()
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55       GEARMAN_NO_ACTIVE_FDS
56              No active connections were available.  gearman_continue() can be
57              used to test for this.
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59       GEARMAN_GETADDRINFO
60              Name resolution failed for a host.
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62       GEARMAN_NO_SERVERS
63              No servers have been provided for the client/worker.
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65       GEARMAN_LOST_CONNECTION
66              Connection was lost to the given server.
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68       GEARMAN_MEMORY_ALLOCATION_FAILURE
69              Memory allocation failed.
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71       GEARMAN_SERVER_ERROR
72              An error occurred on the server.
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74       GEARMAN_NOT_CONNECTED
75              Client/Worker is not currently connected to the server.
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77       GEARMAN_COULD_NOT_CONNECT
78              Server name was valid, but a connection could not be made.
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80       GEARMAN_ECHO_DATA_CORRUPTION
81              Either gearman_client_echo() or gearman_worker_echo()  echo  was
82              unsuccessful  because  the  data was returned from gearmand cor‐
83              rupted.
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85       GEARMAN_UNKNOWN_STATE
86              The gearman_return_t was never set.
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88       GEARMAN_FLUSH_DATA
89              Internal state, should never be seen by either client or worker.
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91       GEARMAN_SEND_BUFFER_TOO_SMALL
92              Send buffer was too small.
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94       GEARMAN_TIMEOUT
95              A timeout occurred when making a request to the server.
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97       GEARMAN_ARGUMENT_TOO_LARGE
98              Argument was too large for the current buffer.
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100       GEARMAN_INVALID_ARGUMENT
101              One of the arguments to the given API call was  invalid.  EINVAL
102              will  be set if gearman_client_error() or gearman_worker_error()
103              were  not  settable.  This  can  also  be  returned   if   GEAR‐
104              MAN_CLIENT_UNBUFFERED_RESULT was set, but the client is not han‐
105              dling the data correctly.
106
107   CLIENT ONLY
108       GEARMAN_NEED_WORKLOAD_FN
109              A client was asked for work, but no gearman_workload_fn callback
110              was specified. See gearman_client_set_workload_fn()
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112       GEARMAN_WORK_FAIL
113              A task has failed, and the worker has exited with an error or it
114              called gearman_job_send_fail()
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116       GEARMAN_IN_PROGRESS
117              gearman_client_job_status()  has  been  called   for   a   gear‐
118              man_job_handle_t and the Job is currently being run by a worker.
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120       GEARMAN_JOB_EXISTS
121              gearman_client_job_status()   has   been   called  for  a  gear‐
122              man_job_handle_t and the Job is currently known by a server, but
123              is not being run by a worker.
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125   WORKER ONLY
126       GEARMAN_INVALID_FUNCTION_NAME
127              A  worker  was  sent  a request for a job that it did not have a
128              valid function for.
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130       GEARMAN_INVALID_WORKER_FUNCTION
131              No callback was provided by the worker for a given function.
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133       GEARMAN_NO_REGISTERED_FUNCTION
134              A request for removing  a  given  function  from  a  worker  was
135              invalid since that function did not exist.
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137       GEARMAN_NO_REGISTERED_FUNCTIONS
138              The worker has not registered any functions.
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140       GEARMAN_NO_JOBS
141              No  jobs  were  found  for  the  worker. This error code is only
142              returned if the worker has just made a request for jobs.
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144   WORKER TO CLIENT
145       Client which have registed a custom  gearman_actions_t  may  use  these
146       value as return values to the calling client.
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148       GEARMAN_WORK_DATA
149              Worker  has sent a chunked piece of data to the client via gear‐
150              man_job_send_data()
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152       GEARMAN_WORK_WARNING
153              Worker  has  issued  a  warning  to   the   client   via   gear‐
154              man_job_send_warning()
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156       GEARMAN_WORK_STATUS
157              Status  has been updated by the worker via gearman_job_send_sta‐
158              tus()
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160       GEARMAN_WORK_EXCEPTION
161              Worker  has   sent   an   exception   the   client   via   gear‐
162              man_job_send_exception()
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164       GEARMAN_WORK_FAIL
165              A task has failed, and the worker has exited with an error or it
166              called gearman_job_send_fail()
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168       GEARMAN_WORK_ERROR
169              A task has had an error and will be retried.
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171       GEARMAN_PAUSE
172              Used only in custom  application  for  client  return  based  on
173              GEARMAN_WORK_DATA, GEARMAN_WORK_WARNING, GEARMAN_WORK_EXCEPTION,
174              GEARMAN_WORK_FAIL,  or  GEARMAN_WORK_STATUS.  gearman_continue()
175              can be used to check for this value.
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177   WORKER TO CLIENT
178       Any  function  defined by gearman_worker_define_function() may, and can
179       only, return the following gearman_return_t values.
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181       GEARMAN_SUCCESS
182              The function successfully completed the job.
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184       GEARMAN_FATAL
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186       GEARMAN_FAIL
187              The function failed to complete the job.  GEARMAN_FATAL  is  the
188              deprecated name for GEARMAN_FAIL
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190       GEARMAN_ERROR
191              A task has had an error and will be retried.
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193       GEARMAN_SHUTDOWN
194              GEARMAN_SHUTDOWN is a special case. If it is returned the client
195              will be sent  GEARMAN_SUCCESS,  but  gearman_worker_work()  will
196              exit with GEARMAN_SHUTDOWN.
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198   TASK ONLY
199       GEARMAN_NOT_FLUSHING
200              gearman_task_send_workload()  failed,  it was not in the correct
201              state.
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203       GEARMAN_DATA_TOO_LARGE
204              gearman_task_send_workload() failed, the data was too  large  to
205              be sent.
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207       GEARMAN_UNKNOWN_OPTION
208              Default state of task return value.
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210   PROTOCOL
211       If any of these errors occurred the connection will be dropped/reset.
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213       GEARMAN_INVALID_MAGIC
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215       GEARMAN_INVALID_COMMAND
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217       GEARMAN_INVALID_PACKET
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219       GEARMAN_UNEXPECTED_PACKET
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221       GEARMAN_TOO_MANY_ARGS
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223   DEPRECATED
224       GEARMAN_IGNORE_PACKET
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226       GEARMAN_MAX_RETURN
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SEE ALSO

229       gearmand(8)     libgearman(3)     gearman_client_error()    or    gear‐
230       man_worker_error()
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AUTHOR

233       Data Differential http://www.datadifferential.com/
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236       2011-2014, Data Differential, http://www.datadifferential.com/
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2411.1.18                         December 11, 2017           GEARMAN_RETURN_T(3)
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