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2010-03-10OTP-8502 os:cmd hangRickard Green
A race condition in os:cmd/1 could cause the caller to get stuck in os:cmd/1 forever.
2010-03-09Merge branch 'ks/types' into devErlang/OTP
* ks/types: file.hrl: Move out type declarations kernel: Add types and specs OTP-8494 ks/types
2010-03-07file.hrl: Move out type declarationsKostis Sagonas
Having various type declarations in the file.hrl file was once upon a time necessary since the system could not really handle remote types. Now it can and these declarations should not be there but appear in file.erl instead. This means that files that need to use these types can refer to them using a remote type reference, and not having to include file.hrl - at least not for this reason.
2010-03-07kernel: Add types and specsKostis Sagonas
2010-02-14file.erl: Add a type to be used from other modulesKostis Sagonas
2010-02-10OTP-8418 user.erl (used in oldshell) is updated to handle unicode inPatrik Nyblom
prompt strings (io:get_line/{1,2}). io_lib is also updated to format prompts with the 't' modifier (i.e. ~ts instead of ~s).
2010-02-10Support the configure option --enable-native-libsKostis Sagonas
2010-02-10Merge branch 'mp/hipe_unified_loader' into ccase/r13b04_devErlang/OTP
* mp/hipe_unified_loader: hipe_unified_loader: only block SMP scheduling when necessary
2010-02-10Merge branch 'rani/inet_gethostbyname_fixes' into ccase/r13b04_devErlang/OTP
* rani/inet_gethostbyname_fixes: inet_res_SUITE: testcase fixes for legacy DNS resolver (Solaris 8) inet_res: /etc/resolv.conf: use domain as default search list inet: delayed/avoided read of /etc/resolv.conf and /etc/hosts inet_gethost_native: workaround for empty result hostname on MacOS X inet_res_SUITE: testcase fix for empty domain name inet:gethostbyname improved to parse IP strings and look up own hostname OTP-8426 The resolver routines failed to look up the own node name as hostname, if the OS native resolver was erroneously configured, bug reported by Yogish Baliga, now fixed. The resolver routines now tries to parse the hostname as an IP string as most OS resolvers do, unless the native resolver is used. The DNS resolver inet_res and file resolver inet_hosts now do not read OS configuration files until they are needed. Since the native resolver is default, in most cases they are never needed. The DNS resolver's automatic updating of OS configuration file data (/etc/resolv.conf) now uses the 'domain' keyword as default search domain if there is no 'search' keyword.
2010-02-09inet_res: /etc/resolv.conf: use domain as default search listRaimo Niskanen
When the search list option in /etc/resolv.conf was empty, the domain option was not used as default search domain. That has been fixed in this patch.
2010-02-09inet: delayed/avoided read of /etc/resolv.conf and /etc/hostsRaimo Niskanen
The 'file' and 'dns' lookup methods configuration files are now read and parsed at the time of the first lookup instead of at boot time when per default none of these lookup methods are used.
2010-02-09inet_gethost_native: workaround for empty result hostname on MacOS XRaimo Niskanen
On MacOS X the getaddrinfo function apparently can return a result without canonical hostname e.g when looking up a IPv6 address string as hostname. The receiving erlang code was not prepared for that and this patch does a workaround by using the search string as default value for canonical hostname.
2010-02-09inet:gethostbyname improved to parse IP strings and look up own hostnameRaimo Niskanen
Now inet:gethostbyname tries to parse the hostname as an IP string first if the 'native' lookup method is not used. One can also make the IP string parsing explicit using the new 'string' lookup method, or avoid it using the new pseudo lookup method 'nostring'. In R13B04 a bug was introduced when the gethostbyname code was rewritten, so if the native resolver was used and misconfigured to not be able to look up the own hostname, inet:gethostbyname also failed. This is now fixed.
2010-02-09hipe_unified_loader: only block SMP scheduling when necessaryMikael Pettersson
This avoids costly scheduling changes during module loading if native code is disabled in erts, or not present in the module being loaded. Signed-off-by: Mikael Pettersson <[email protected]>
2010-02-08Merge branch 'sc/sctp-connect-nowait' into ccase/r13b04_devErlang/OTP
* sc/sctp-connect-nowait: Implement a non-blocking SCTP connect OTP-8414 There are new gen_sctp:connect_init/* functions that initiate an SCTP connection without blocking for the result. The result is delivered asynchronously as an sctp_assoc_change event. (Thanks to Simon Cornish.)
2010-02-06Implement a non-blocking SCTP connectSimon Cornish
This patch adds a new set of functions - gen_sctp:connect_init/* that initiate an SCTP connection without blocking for the result. The result is delivered asynchronously as an sctp_assoc_change event. The new functions have the same API as documented for gen_sctp:connect/* with the following exceptions: * Timeout is only used to supervise resolving Addr (the peer address) * The possible return values are ok | {error, posix()} The caller application is responsible for receiving the #sctp_assoc_change{} event and correctly determining the connect it originated from (for example, by examining the remote host and/or port). The application should have at least {active, once} or use gen_sctp:recv to retrieve the connect result. The implementation of gen_sctp:connect suffers from a number of shortcomings which the user may avoid by using gen_sctp:connect_init and adding code to receive the connect result. First, irrespective of the Timeout value given to gen_sctp:connect, the OS attempts and retries the SCTP INIT according to various kernel parameters. If the Timeout value is shorter than the entire attempt then the application will still receive an sctp_assoc_change event after the {error, timeout} is returned from the initial call. This could be somewhat confusing (either to the application or the designer!) especially if the status is comm_up. Subsequent calls to connect before the OS has finished this process return {error, ealready} which may also be counter-intuitive. Second, there is a race-condition (documented in comments in inet_sctp.erl) that can cause the wrong sctp_assoc_change record to be returned to an application calling gen_sctp:connect. The race seriously affects connection attempts when using one-to-many sockets.
2010-02-05Fix handling of archive (.ez) files in code:clash/0Tuncer Ayaz
code:clash/0 did not take into account .ez files when listing contents of code path entries. Using erl_prim_loader:list_dir/1 instead of file:list_dir/1 fixes the problem. Signed-off-by: Tuncer Ayaz <[email protected]>
2010-01-31kernel/src/Makefile: fix broken 'clean' targetBjörn Gustavsson
2010-01-27fix hipe loader SMP non-atomicity errorMikael Pettersson
Loading native code is a multi-step operation that needs to be atomic, but the HiPE loader failed to ensure that. This caused corruption of runtime system structure in some cases. Fix by blocking multi_scheduling around main loader entry points. Signed-off-by: Mikael Pettersson <[email protected]>
2010-01-27OTP-8387 Explicit top directories in archive files are now optional.Håkan Mattsson
For example, if an archive (app-vsn.ez) just contains an app-vsn/ebin/mod.beam file, the file info for the app-vsn and app-vsn/ebin directories are faked using the file info from the archive file as origin. The virtual direcories can also be listed. For short, the top directories are virtual if they does not exist.
2010-01-07OTP-8358 A race bug affecting pg2:get_local_members/1 has been fixed. TheHans Bolinder
bug was introduced in R13B03.
2009-12-13Change the expected return value for on_load functionsBjörn Gustavsson
An on_load function is supposed to return 'true' to indicate that the module should be loaded, and 'false' if it should be unloaded. But returning any other term, as well as causing an exception, will also unload the module. Since we don't like boolean values mixed with other values, change the expected return value as follows: * If 'ok' is returned, the module will remain loaded and become callable. * If any other value is returned (or an exception is generated), the module will be unloaded. Also, if the returned value is not an atom, send a warning message to the error_logger (using error_logger:warning_msg/2). The new interpretation of the return value means that an on_load function can now directly return the return value from erlang:load_nif/2.
2009-11-20The R13B03 release.OTP_R13B03Erlang/OTP