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| author | Mark Hatle <mark.hatle@windriver.com> | 2011-10-26 16:51:34 -0500 |
|---|---|---|
| committer | Peter Seebach <peter.seebach@windriver.com> | 2011-11-02 13:31:41 -0500 |
| commit | 6177474388f243c9ff783da074a531ef8fd173fd (patch) | |
| tree | 8f3df61d79586d6a737e08d4a12f25b606871b5e /doc/program_flow | |
| parent | 4a646c8bbe73ca830cb8c2e80be4b457d925cdd4 (diff) | |
| download | pseudo-6177474388f243c9ff783da074a531ef8fd173fd.tar.gz pseudo-6177474388f243c9ff783da074a531ef8fd173fd.tar.bz2 pseudo-6177474388f243c9ff783da074a531ef8fd173fd.zip | |
Implement PSEUDO_UNLOAD, replacing existing PSEUDO_RELOADED semantics.
Change from internal PSEUDO_RELOADED to external PSEUDO_UNLOAD environment
variable. Enable external programs to have a safe and reliable way to unload
pseudo on the next exec*. PSEUDO_UNLOAD also will disable pseudo if we're in a
fork/clone situation in the same way PSEUDO_DISABLED=1 would.
Rename the PSEUDO_DISABLED tests, and create a similar set for the new
PSEUDO_UNLOAD.
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Diffstat (limited to 'doc/program_flow')
| -rw-r--r-- | doc/program_flow | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/doc/program_flow b/doc/program_flow index 8991681..3a399a7 100644 --- a/doc/program_flow +++ b/doc/program_flow @@ -14,7 +14,7 @@ libpseudo execution flow: setup pseudo_functions setup pseudo_logfile pseudo_client.c: pseudo_init_client() - setup PSEUDO_DISBLED + setup PSEUDO_DISABLED setup pseudo_prefix_dir_fd setup pseudo_localstate_dir_fd setup PSEUDO_NOSYMLINKEXP @@ -28,26 +28,35 @@ libpseudo execution flow: pseudo_check_wrappers(): pseudo_reinit_libpseudo if necessary call wrap_exec*() - if !PSEUDO_RELOADED - pseudo_setupenv() - else - pseudo_setupenv() + pseudo_setupenv() + if PSEUDO_UNLOAD pseudo_dropenv() real_exec*() fork() - clone() pseudo_check_wrappers(): pseudo_reinit_libpseudo if necessary - call wrap_exec*() - if !PSEUDO_RELOADED + call wrap_fork() + real_fork() + if (child) pseudo_setupenv() + if !PSEUDO_UNLOAD + pseudo_reinit_libpseudo() + _libpseudo_init() + else + pseudo_dropenv() + + clone() + pseudo_check_wrappers(): + pseudo_reinit_libpseudo if necessary + call wrap_clone() + pseudo_setupenv() + if !PSEUDO_UNLOAD pseudo_reinit_libpseudo() _libpseudo_init() else - pseudo_setupenv() pseudo_dropenv() - real_*() + real_clone() ... normal function wrappers ... (templates/wrapfuncs.c): pseudo_check_wrappers() || !real_* |