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| 2 | DIM version 15.23 Release Notes
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| 3 |
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| 4 | Notes 1 and 2 for Unix Users only
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| 5 | NOTE 1: In order to "make" DIM two environment variables should be set:
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| 6 | OS = one of {HP-UX, AIX, OSF1, Solaris, SunOS, LynxOS, Linux}
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| 7 | DIMDIR = the path name of DIM's top level directory
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| 8 | The user should then go to DIM's top level directory and do:
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| 9 | > source .setup
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| 10 | > gmake all
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| 11 | Or, if there is no support for C++ on the machine:
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| 12 | > gmake CPP=no all
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| 13 |
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| 14 | NOTE 2: The Name Server (Dns), DID, servers and clients (if running in
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| 15 | background) should be started whith the output redirected to a
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| 16 | logfile ex:
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| 17 | Dns </dev/null >& dns.log &
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| 18 |
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| 19 | NOTE 3: The Version Number service provided by servers is now set to 1523
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| 20 | (version 15.23).
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| 21 |
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| 22 | 17/09/2004
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| 23 | Changes for version 15.0:
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| 24 | - Changes for 64 bit machine (LP64 architecture) support
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| 25 | - All DIM "tags" are now longs instead of ints this affects:
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| 26 | - Client callback parameters
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| 27 | - Server callback parameters
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| 28 | - Timer callback parameters
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| 29 | (The reason is: tags were very often user to pass pointers)
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| 30 | - DIM is now compiled with -fPIC by default on Linux
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| 31 | - The byte swapping and structure padding was fixed.
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| 32 |
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| 33 | 14/10/2004
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| 34 | Changes for version 15.1:
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| 35 | - Big Bug Fixed affecting the DIM_DNS for windows!!!!
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| 36 | - Windows has an hidden default limit of the number of sockets
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| 37 | per process set to 64, only partially though, more sockets can
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| 38 | be created with no problem but they are silently masked out
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| 39 | by the select call!
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| 40 | - Anyway this limit is now set to 1024.
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| 41 | - removed a few print statements.
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| 42 |
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| 43 | 28/10/2004
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| 44 | Changes for version 15.2:
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| 45 | - Removed some C++ style comments which did not compile on Solaris.
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| 46 |
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| 47 | 02/11/2004
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| 48 | Changes for version 15.3:
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| 49 | - Byte swapping was missing in one place when asking for stampped
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| 50 | services (noticed on Solaris)
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| 51 |
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| 52 | 11/11/2004
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| 53 | Changes for version 15.4:
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| 54 | - Added two command line options to dim_send_command:
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| 55 | dim_send_command <cmnd_name> [<data>] [-dns <dim_dns_node>] [-s]
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| 56 | -dns allows setting the dim_dns_node, and -s means silent.
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| 57 |
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| 58 | 03/12/2004
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| 59 | Changes for version 15.5:
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| 60 | - Changed the bahaviour of the DNS "KILL_SERVERS" command. Now if the
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| 61 | user declares a server exit_handler, the server will not exit (unless
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| 62 | the user code explicilty exits) and will continue running fine,
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| 63 | otherwise the server exits as before.
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| 64 | - The exit_handler now gets as parameter the error code that caused the
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| 65 | exit request (so that the user can decide wether to exit or not) or
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| 66 | the code sent by the client, if the EXIT request came from a client.
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| 67 | As a result clients should not send exit codes lower than 0x100 in order
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| 68 | not to be confused with the internal error codes.
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| 69 | - IMPORTANT NOTES:
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| 70 | - The behaviour of the user error_handler() changed. Now the
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| 71 | error_handler only gets called to report an error. If the user wants
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| 72 | to modify the automatic exit behaviour he/she has to also declare an
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| 73 | exit_handler. In previous versions if an error_handler was declared,
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| 74 | the exit_handler was not necessary.
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| 75 | - Also the Java version has changed since the ERROR codes changed.
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| 76 |
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| 77 | 07/12/2004
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| 78 | Changes for version 15.5-1:
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| 79 | - Corrected a bug in include file dis.hxx introduced in v15r5
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| 80 |
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| 81 | 08/12/2004
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| 82 | Changes for version 15.6:
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| 83 | - Included support for Scheduling policies and priorities between DIM
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| 84 | threads by creating the calls:
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| 85 | - dim_set_scheduler_class(int sched_class)
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| 86 | - dim_get_scheduler_calss(int *sched_class)
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| 87 | - dim_set_priority(int dim_thread, int priority)
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| 88 | - dim_get_priority(int dim_thread, int priority)
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| 89 |
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| 90 | These calls are only implemented on Linux and Windows and they have
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| 91 | different behaviour on the two platforms:
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| 92 | - dim_set_scheduler_class(int sched_class)
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| 93 | On Windows:
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| 94 | sched_class is the process's priority class:
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| 95 | -1 = IDLE_PRIORITY_CLASS
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| 96 | 0 = NORMAL_PRIORITY_CLASS
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| 97 | 1 = HIGH_PRIORITY_CLASS
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| 98 | 2 = REALTIME_PRIORITY_CLASS
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| 99 | On Linux:
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| 100 | sched_class is the process's schedule policy:
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| 101 | 0 = SCHED_OTHER
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| 102 | 1 = SCHED_FIFO
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| 103 | 2 = SCHED_RR
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| 104 | All threads in the process will be set to this sched_class
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| 105 |
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| 106 | - dim_set_priority(int dim_thread, int priority)
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| 107 | where dim_thread : 1 - Main thread, 2 - IO thread, 3 - Timer thread
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| 108 | On Windows:
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| 109 | priority is the thread's relative priority:
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| 110 | -3 = THREAD_PRIORITY_IDLE
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| 111 | -2 = THREAD_PRIORITY_LOWEST
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| 112 | -1 = THREAD_PRIORITY_BELOW_NORMAL
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| 113 | 0 = THREAD_PRIORITY_NORMAL
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| 114 | 1 = THREAD_PRIORITY_ABOVE_NORMAL
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| 115 | 2 = THREAD_PRIORITY_HIGHEST
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| 116 | 3 = THREAD_PRIORITY_TIME_CRITICAL
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| 117 |
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| 118 | On Linux:
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| 119 | priority is the thread's absolute priority:
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| 120 | 0 for SCHED_OTHER
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| 121 | 1 - 99 for SCHED_FIFO or SCHED_RR
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| 122 |
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| 123 | 03/02/2005
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| 124 | Changes for version 15.7:
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| 125 | - Fixed a bug that made DIM servers crash when unplugging for a short time the
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| 126 | network cable.
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| 127 | - Linux executables and libraries are now compiled on Linux SLC3 with gcc 3.2.3
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| 128 | - Contains a new version of the DIM Tree Browser for WIndows.
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| 129 |
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| 130 | 02/03/2005
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| 131 | Changes for version 15.8:
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| 132 | - Contains again a new version of the DIM Tree Browser for WIndows, now allows
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| 133 | to display structures correctly (Thanks to Serguei Sergueev).
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| 134 | - DIM used old style predefined macros, for example linux instead of __linux__.
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| 135 | So it didn't compile when users used gcc/g++ -ansi -pedantic. Fixed.
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| 136 | - A check is now made on the length of a DIM service name. The service is
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| 137 | discarded if the name is longer then 131 characters.
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| 138 |
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| 139 | 04/04/2005
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| 140 | Changes for version 15.9:
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| 141 | - Ported to MacOSX (Darwin). "OS" has to be defined as "Darwin":
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| 142 | - Replaced ftime() by gettimeofday()
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| 143 | - Used sem_open instead of sem_init on Darwin. (sem_init not implemented).
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| 144 | - Made some order in the macro definition, so that it works whether for example
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| 145 | unix or __unix__ are defined.
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| 146 | - Sometimes when a server received a command, the connection to the client wasn't
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| 147 | completely setup yet, so DimServer::getClientName() would not return the correct
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| 148 | result - Fixed.
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| 149 |
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| 150 | 11/04/2005
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| 151 | Changes for version 15.10:
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| 152 | - Fixed a memory leak that happened in clients when sending commands to a
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| 153 | non-existing server.
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| 154 |
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| 155 | 15/04/2005
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| 156 | Changes for version 15.11:
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| 157 | - Optimized DIM for servers with many services (in particular the server library).
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| 158 | - Uses a better Hash function in Dns and servers.
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| 159 |
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| 160 | 20/04/2005
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| 161 | Changes for version 15.12:
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| 162 | - DIM did not update a service if it contained no data - fixed.
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| 163 |
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| 164 | 22/04/2005
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| 165 | Changes for version 15.13:
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| 166 | - Fixed a bug introduced in version 15.11, servers did not reconnect anymore
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| 167 | when the DNS restarted.
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| 168 |
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| 169 | 02/05/2005
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| 170 | Changes for version 15.14:
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| 171 | - Fixed several features or bugs related to the optimizations for many services:
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| 172 | - Sometimes a server declaring the same services would not exit properly
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| 173 | - If a browser was open it would slow down enourmously the start up of the
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| 174 | server
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| 175 | - A server sometimes crashed while declaring the services
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| 176 |
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| 177 | 24/05/2005
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| 178 | Changes for version 15.15:
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| 179 | - Fixed some warnings reported by "valgrind" mostly related to delete[]
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| 180 |
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| 181 | 30/05/2005
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| 182 | Changes for version 15.16:
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| 183 | - Fixed a bug related to a server name longer than 40 characters.
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| 184 |
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| 185 | 16/06/2005
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| 186 | Changes for version 15.17:
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| 187 | - Included the call keepWaiting() in DimRpcInfo. To allow multiple client
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| 188 | RPCs to use the same Server RPC (the user still has to provide an id).
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| 189 |
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| 190 | 20/06/2005
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| 191 | Changes for version 15.18:
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| 192 | - Included support for creating user threads:
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| 193 | - From "C":
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| 194 | int dim_start_thread(void (*thread_ast)(), long tag)
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| 195 | - From C++:
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| 196 | class DimThread
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| 197 | {
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| 198 | public:
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| 199 | DimThread();
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| 200 | virtual ~DimThread();
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| 201 | int start();
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| 202 | virtual void threadHandler() { };
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| 203 | };
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| 204 |
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| 205 | 27/06/2005
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| 206 | Changes for version 15.19:
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| 207 | - Added the possibility to decide not to update a service in a server callback
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| 208 | by returning a negative size (to be used with care, since the client will
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| 209 | timeout if the server stops responding for too long).
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| 210 |
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| 211 | 15/08/2005
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| 212 | Changes for version 15.20:
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| 213 | - Fixed a bug which could make a DIM server loop forever (happened to tmSrv)
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| 214 |
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| 215 | 19/08/2005
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| 216 | Changes for version 15.21:
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| 217 | - Fixed a bug in the DNS introduced in version v15r7: would not report and react
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| 218 | properly, in some ocasions, to previously declared services.
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| 219 |
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| 220 | 05/10/2005
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| 221 | Changes for version 15.22:
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| 222 | - Fixed some error messages reported by the DNS, they were not correct.
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| 223 |
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| 224 | 04/11/2005
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| 225 | Changes for version 15.23:
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| 226 | - Fixed several bugs in the timer handling mechanisms. Could provoke fake timeouts.
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| 227 |
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| 228 | Please check the Manual for more information at:
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| 229 | http://www.cern.ch/dim
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