Move CWD field handling to platform-neutral code

Process.c

@@ -777,6 +777,20 @@ void Process_writeField(const Process* this, RichString* str, ProcessField field
       Process_printLeftAlignedField(str, attr, procExe, TASK_COMM_LEN - 1);
       return;
    }
+   case CWD: {
+      const char* cwd;
+      if (!this->procCwd) {
+         attr = CRT_colors[PROCESS_SHADOW];
+         cwd = "N/A";
+      } else if (String_startsWith(this->procCwd, "/proc/") && strstr(this->procCwd, " (deleted)") != NULL) {
+         attr = CRT_colors[PROCESS_SHADOW];
+         cwd = "main thread terminated";
+      } else {
+         cwd = this->procCwd;
+      }
+      Process_printLeftAlignedField(str, attr, cwd, 25);
+      return;
+   }
    case ELAPSED: Process_printTime(str, /* convert to hundreds of a second */ this->processList->realtimeMs / 10 - 100 * this->starttime_ctime, coloring); return;
    case MAJFLT: Process_printCount(str, this->majflt, coloring); return;
    case MINFLT: Process_printCount(str, this->minflt, coloring); return;
@@ -915,6 +929,7 @@ void Process_done(Process* this) {
    free(this->cmdline);
    free(this->procComm);
    free(this->procExe);
+   free(this->procCwd);
    free(this->mergedCommand.str);
    free(this->tty_name);
 }
@@ -1074,6 +1089,8 @@ int Process_compareByKey_Base(const Process* p1, const Process* p2, ProcessField
       const char *exe2 = p2->procExe ? (p2->procExe + p2->procExeBasenameOffset) : (Process_isKernelThread(p2) ? kthreadID : "");
       return SPACESHIP_NULLSTR(exe1, exe2);
    }
+   case CWD:
+      return SPACESHIP_NULLSTR(p1->procCwd, p2->procCwd);
    case ELAPSED:
       r = -SPACESHIP_NUMBER(p1->starttime_ctime, p2->starttime_ctime);
       return r != 0 ? r : SPACESHIP_NUMBER(p1->pid, p2->pid);

Process.h

@@ -17,7 +17,9 @@ in the source distribution for its full text.
 #include "RichString.h"
 
 
-#define PROCESS_FLAG_IO 0x0001
+#define PROCESS_FLAG_IO              0x00000001
+#define PROCESS_FLAG_CWD             0x00000002
+
 #define DEFAULT_HIGHLIGHT_SECS 5
 
 typedef enum ProcessField_ {
@@ -49,6 +51,7 @@ typedef enum ProcessField_ {
    ELAPSED = 54,
    PROC_COMM = 124,
    PROC_EXE = 125,
+   CWD = 126,
 
    /* Platform specific fields, defined in ${platform}/ProcessField.h */
    PLATFORM_PROCESS_FIELDS
@@ -151,6 +154,9 @@ typedef struct Process_ {
    /* The main process executable */
    char *procExe;
 
+   /* The process/thread working directory */
+   char *procCwd;
+
    /* Offset in procExe of the process basename */
    int procExeBasenameOffset;
 

linux/LinuxProcess.c

@@ -99,7 +99,7 @@ const ProcessFieldData Process_fields[LAST_PROCESSFIELD] = {
    [SECATTR] = { .name = "SECATTR", .title = " Security Attribute ", .description = "Security attribute of the process (e.g. SELinux or AppArmor)", .flags = PROCESS_FLAG_LINUX_SECATTR, },
    [PROC_COMM] = { .name = "COMM", .title = "COMM            ", .description = "comm string of the process from /proc/[pid]/comm", .flags = 0, },
    [PROC_EXE] = { .name = "EXE", .title = "EXE             ", .description = "Basename of exe of the process from /proc/[pid]/exe", .flags = 0, },
-   [CWD] = { .name ="CWD", .title = "CWD                       ", .description = "The current working directory of the process", .flags = PROCESS_FLAG_LINUX_CWD, },
+   [CWD] = { .name = "CWD", .title = "CWD                       ", .description = "The current working directory of the process", .flags = PROCESS_FLAG_CWD, },
 };
 
 Process* LinuxProcess_new(const Settings* settings) {
@@ -116,7 +116,6 @@ void Process_delete(Object* cast) {
 #ifdef HAVE_OPENVZ
    free(this->ctid);
 #endif
-   free(this->cwd);
    free(this->secattr);
    free(this);
 }
@@ -259,20 +258,6 @@ static void LinuxProcess_writeField(const Process* this, RichString* str, Proces
       xSnprintf(buffer, n, "%5lu ", lp->ctxt_diff);
       break;
    case SECATTR: snprintf(buffer, n, "%-30s   ", lp->secattr ? lp->secattr : "?"); break;
-   case CWD: {
-      const char* cwd;
-      if (!lp->cwd) {
-         attr = CRT_colors[PROCESS_SHADOW];
-         cwd = "N/A";
-      } else if (String_startsWith(lp->cwd, "/proc/") && strstr(lp->cwd, " (deleted)") != NULL) {
-         attr = CRT_colors[PROCESS_SHADOW];
-         cwd = "main thread terminated";
-      } else {
-         cwd = lp->cwd;
-      }
-      Process_printLeftAlignedField(str, attr, cwd, 25);
-      return;
-   }
    default:
       Process_writeField(this, str, field);
       return;
@@ -364,8 +349,6 @@ static int LinuxProcess_compareByKey(const Process* v1, const Process* v2, Proce
       return SPACESHIP_NUMBER(p1->ctxt_diff, p2->ctxt_diff);
    case SECATTR:
       return SPACESHIP_NULLSTR(p1->secattr, p2->secattr);
-   case CWD:
-      return SPACESHIP_NULLSTR(p1->cwd, p2->cwd);
    default:
       return Process_compareByKey_Base(v1, v2, key);
    }

linux/LinuxProcess.h

@@ -27,7 +27,6 @@ in the source distribution for its full text.
 #define PROCESS_FLAG_LINUX_CTXT      0x00004000
 #define PROCESS_FLAG_LINUX_SECATTR   0x00008000
 #define PROCESS_FLAG_LINUX_LRS_FIX   0x00010000
-#define PROCESS_FLAG_LINUX_CWD       0x00020000
 #define PROCESS_FLAG_LINUX_DELAYACCT 0x00040000
 
 typedef struct LinuxProcess_ {
@@ -100,7 +99,6 @@ typedef struct LinuxProcess_ {
    unsigned long ctxt_diff;
    char* secattr;
    unsigned long long int last_mlrs_calctime;
-   char* cwd;
 } LinuxProcess;
 
 extern int pageSize;

linux/LinuxProcessList.c

@@ -911,17 +911,17 @@ static void LinuxProcessList_readCwd(LinuxProcess* process, openat_arg_t procFd)
 #endif
 
    if (r < 0) {
-      free(process->cwd);
+      free(process->super.procCwd);
-      process->cwd = NULL;
+      process->super.procCwd = NULL;
       return;
    }
 
    pathBuffer[r] = '\0';
 
-   if (process->cwd && String_eq(process->cwd, pathBuffer))
+   if (process->super.procCwd && String_eq(process->super.procCwd, pathBuffer))
       return;
 
-   free_and_xStrdup(&process->cwd, pathBuffer);
+   free_and_xStrdup(&process->super.procCwd, pathBuffer);
 }
 
 #ifdef HAVE_DELAYACCT
@@ -1434,7 +1434,7 @@ static bool LinuxProcessList_recurseProcTree(LinuxProcessList* this, openat_arg_
          LinuxProcessList_readSecattrData(lp, procFd);
       }
 
-      if (settings->flags & PROCESS_FLAG_LINUX_CWD) {
+      if (settings->flags & PROCESS_FLAG_CWD) {
          LinuxProcessList_readCwd(lp, procFd);
       }
 

linux/ProcessField.h

@@ -44,7 +44,8 @@ in the source distribution for its full text.
    M_PSSWP = 121,                \
    CTXT = 122,                   \
    SECATTR = 123,                \
-   CWD = 126,                    \
+                                 \
+   DUMMY_BUMP_FIELD = CWD,       \
    // End of list