The new header "os.h" defines a supplemental API around existing basic
operating system services (system calls and standard library functions).
Moved some function prototypes from serval.h and net.h into os.h.
This allows non-servald executables to take advantage of this API without
having to include serval.h and bringing in all the other servald link-time
baggage.
Move alloca_tohex() from serval.h into str.h so it can be used stand-alone.
Rename str_to_ll_scaled() to str_to_int64_scaled(). Add str_to_uint64_scaled()
and scale_factor().
Add a few more URI parsing functions. Move some functions out of str.c and
into str.h as inline functions.
Add __whence args to fd_func_enter() and fd_func_exit() so that their log
messages get reported from the location of the IN() or OUT() macro, not a line
in performance_timing.c.
Removed diagnostic information from the FATAL() message in fd_func_exit(), and
a comment explaining why (causes SEGV).
Move lots of non-Serval-specific string functions from "serval.h"/dataformats.c
to "str.h"/str.c.
Add str_fromprint() function that reverses the effect of toprint(): interprets
escape sequences in the source string "\n\t\r\0\xHH\\" and replaces them with a
single char in the destination string.
Replace the main-loop scheduled periodic alarm with an "activate" alarm that is
scheduled whenever a fetch candidate is added to any queue, unless the alarm is
already scheduled.
Replace the "rhizome.fetch_interval_ms" config item with
"rhizome.fetch_delay_ms" [default 50], which is the number of milliseconds
between adding a fetch candidate and firing the "activate" alarm. This allows
time for a few more Rhizome advertisment packets to arrive after the first one,
before deciding which fetches to start first.
Add new `is_scheduled()` alarm primitive.
Introduce __WHENCE__ macro and a block comment in log.h explaining it.
In "primitive" kinds of functions, rename 'whence' arguments to '__whence' and
use WHYF(), WARNF(), DEBUGF() macros instead of calling logMessage() directly.
Add test case for new feature of the "rhizome add" command: if the author SID
is not specified (empty arg) then it searches the keyring for the author.
Removed "authorSid" argument from several functions that also take a struct
rhizome_manifest * arg, since the author, if known, is now supplied in the
struct.
Improve return value handling and refactored some rhizome crypto code.
All test cases pass on Solaris (see issue #16) except the 'jni' tests because
there is no Java compiler available on Solaris, and the new 'rhizomeprotocol'
tests from the rhizomedirect branch, which have always failed.
